2011 Edition - Técnico Lisboa - Autenticação · - Qenergia - Metropolitano de Lisboa . 8 ... contacts mail: [email protected] tel: (+351) 213100233 url: keywords Communication

2011 Edition

2

Contents

Introduction ................................................................................................. 3

Research Institutes and Centers ................................................................. 4

IT – Instituto de Telecomunicações ....................................................................... 5

INESC-ID - Instituto de Engenharia de Sistemas e Computadores - Investigação

e Desenvolvimento em Lisboa .............................................................................. 6

Cie3 – Centro para a Inovação em Engenharia Electrotécnica e Energia ............. 7

ISR – Instituto de Sistemas e Robótica ............................................................. 8

CAPS – Centro de Análise e Processamento de Sinais ........................................ 9

IPFN - Instituto de Plasmas e Fusão Nuclear ...................................................... 10

CEG-IST - Centro de Estudos de Gestão do IST ................................................ 11

Faculty ...................................................................................................... 12

Computers ........................................................................................................... 13

Electronics ........................................................................................................... 35

Energy ................................................................................................................. 64

Systems, Decision and Control ........................................................................... 86

Telecommunications ......................................................................................... 112

3

Introduction

This guide was prepared to facilitate the task of graduate students and visitors wishing

to obtain information about the faculty of the Department of Electrical and Computer

Engineering (DEEC) and its research activities.

The DEEC has 130 professors, all of them with a Ph.D. degree, and deeply involved in

research activities.

The Department teaching and research activities are organized in the following areas:

Computers

Electronic Systems

Energy

Systems, Decision and Control

Telecommunications

Most of the research activities are carried out within research institutes, partially funded

by the Portuguese Government. This research is periodically evaluated by panels of

international experts and their report is available in the web. Most of the research carried

out by the faculty of DEEC has been classified as Excellent or Very Good in these

independent evaluations.

This guide is organized in two parts. The first provides information (contacts and

summary of the objectives) about the research institutes associated with the DEEC. The

second provides a complete list of professors, detailing their contacts and research

interests.

We hope you may find it useful.

Prof. Pedro Silva Girão Prof. Jorge S. Marques

Dean Deputy Dean for R&D

4

Research Institutes and Centers

5

IT – Instituto de Telecomunicações

Director Prof. Carlos Salema

number of DEEC professors

38

contacts address: Instituto de Telecomunicações Instituto Superior Técnico Torre Norte, piso 10, Av. Rovisco Pais, 1 P-1049-001 LISBOA, PORTUGAL

mail: [email protected] tel: (+351) 21 841 84 54

fax: (+351) 21 841 84 72 URL: http://www.it.pt

mission IT mission is to create and disseminate scientific knowledge in the field of telecommunications. IT is actively involved in fundamental and applied research in telecommunications both at national and international level. Simultaneously IT is committed to foster higher education and training, by hosting and tutoring graduate and postgraduate students.

research areas @IST

research groups @IST 1- Wireless communications (Antenna Modelling and Design; Wireless Circuits and Devices; Transmission and Reception Systems; Waves and Propagation; Radio Network Planning)

2 - Optical communications (Optical Components and Sub-systems; Optical Communication systems; Optical Networking)

3 - Networks and Multimedia (Architectures and Protocols; Speech Analysis and Recognition; Network Applications and Services; Network Operations, Management and Planning; Processing, Analysis, and Coding of Audio and Visual Information; Traffic Engineering; Pattern Recognition and Automatic Learning)

4 - Basic sciences and enabling technologies (Applied Mathematics; Impact of Telecommunications on Society; Integrated Circuits and Systems; Instrumentation and Measurement; Technology and Materials; Power Electronics and Power Systems; Logic and Computation)

R&D cooperation - Agência Espacial Europeia

- Agência de Inovação

- Telecom (PT Inovação, Optimus, Vodafone, TMN, Celfinet,...)

- Siemens Networks

- ANACOM

- Ministério da Defesa (Marinha)

6

INESC-ID - Instituto de Engenharia de Sistemas e Computadores - Investigação e Desenvolvimento em Lisboa

Director Prof. Leonel de Sousa


29

contacts address: Rua Alves Redol, 9 , 1000-029 Lisboa

mail: [email protected] tel: (+ 351) 21 3100300

fax: (+ 351) 21 3145843 URL: http://www.inesc-id.pt

mission INESC-ID aims to produce added value to people and society in the field of Information and Communication Technologies (ICT). The mission of INESC-ID is to develop tomorrow’s technologies by excelling in research, today.

The main objectives of INESC-ID are:

- Integrate competences from researchers in electrical engineering and computer science to advance the state of the art in computers, telecommunications, and information systems;

- Support the first stages of the value generation chain: basic research, applied research, and advanced education;

- In cooperation with other institutions, perform technology transfer, support the creation of technology based startups, and provide technical support.

research areas @IST 1 - Information and Communication Technologies;

2 - Applied Life Sciences

research groups @IST 1 - Spoken Language Systems

2 - Information and Decision Support Systems

3 - Interactive Virtual Environments

4 - Embedded Electronic Systems

5 - Communication Networks and Mobility

1 - Information and Communication Technologies;


1 - Information and Communication Technologies;


R&D cooperation - IST

- ISCTE

- ESTIG

7

Cie3 – Centro para a Inovação em Engenharia Electrotécnica e Energia

Director Prof. João Santana


21

contacts address: Cie3 – Instituto Superior Técnico, Pav. Electricidade, Av.Rovisco Pais, 1, 1049-001 Lisboa, Portugal

mail: [email protected] tel: (+351) 218417215

fax: (+351)-21-8417167 URL:

http://fenix.ist.utl.pt/research/Cie3

mission The mission of Cie3 is to enhance a position as an internationally recognized center of excellence in electrical and energy engineering (EEE). The focus of the center’s research work is in the areas of electrical and energy engineering and economics, with particular attention to applied electromagnetics, electronic and semiconductor devices, energy conversion, power electronics, power quality, power and energy systems, and public and environmental policies.

research areas @IST 1 - Energy, Environment and Mobility;

2 - Production Engineering and Technologies;

3 - Technology Management & Innovation.

research groups @IST 1 - Applied electromagnetics and electronics devices

2 - Alternative energies / electric energy conversion

3 - Power electronics and power quality

4 - Power and energy systems

5 - Public and environmental policies

1 - Energy, Environment and Mobility;



1 - Energy, Environment and Mobility;



R&D cooperation - ERSE

- CP

- Siemens

- Qenergia

- Metropolitano de Lisboa

8

ISR – Instituto de Sistemas e Robótica

Director Prof. Victor Barroso


21

contacts address: ISR – Instituto Superior Técnico, Torre Norte - 7º Piso, Av. Rovisco Pais, 1, 1049-001 Lisboa, Portugal

mail: [email protected] tel: (+351) 218418289

fax: (+351)-21-8418291 URL: http://www.isr.ist.utl.pt

mission ISR-Lisbon is a university based R&D institution where multidisciplinary advanced research activities are developed in the areas of Robotics and Information Processing, including Systems and Control Theory, Signal Processing, Computer Vision, Optimization, AI and Intelligent Systems, Biomedical Engineering. Applications include Autonomous Ocean Robotics, Environmental Monitoring and Habitat Mapping, Surveillance, Search and Rescue, Satellite Formation, Personal Assistant Robotics, Communication Networks and Multimedia.

research areas @IST

research groups @IST 1 - VisLab - Computer and Robot Vision Lab

2 - DSOR - Dynamical Systems and Ocean Robotics Lab

3 - LaSEEB - Evolutionary Systems and Biomedical Engineering Lab

4 - ISLab - Intelligent Systems Lab

5 - LRM - Mobile Robotics Lab

6 - SIPG - Signal and Image Processing Group

7 - SCTG - Systems and Control Theory Group

R&D cooperation

9

CAPS – Centro de Análise e Processamento de Sinais

Director Prof. José Bento Coelho


2

contacts address: Instituto Superior Técnico, Av. Rovisco Pais, 1049-001 Lisboa, Portugal

mail: [email protected] tel: (+351) 21 8419393

fax: (+351) 21 8465303 URL: http://caps.ist.utl.pt/

mission The research activities of the Digital Communications Group involve digital transmission theory and techniques, with radio applications. In recent years, the main activities have been concerned to broadband communications, namely within the next generation of mobile radio systems.

The research activities of the Group of Acoustics and Noise Control are developed in the areas of room acoustics modelling, environmental acoustics, sound quality, measurement techniques, duct acoustics and silencers, and assistive technologies.

research areas @IST

research groups @IST 1 - Group of Acoustics and Noise Control

2 - Digital Communications Group

R&D cooperation

10

IPFN - Instituto de Plasmas e Fusão Nuclear

Director Prof. Carlos Varandas

number of DEEC professors 2

contacts address: Instituto de Plasmas e Fusão Nuclear, Av. Rovisco Pais, 1049-001 Lisboa

mail: [email protected] tel: (+351)) 218 417696

fax: (+351) 218 417819 URL: http://www.ipfn.ist.utl.pt/

mission Instituto de Plasmas e Fusão Nuclear (IPFN) is a research unity of "Instituto Superior Técnico" (IST) with activities on nuclear fusion, plasma technologies and ultra-intense lasers. IPFN has integrated the former CFN-Associated Laboratory of Fundação para a Ciência e a Tecnologia and is the research unit of the Contract of Association between IST and the European Atomic Energy Community (EURATOM), in force since January 1st 1990. IPFN is a member the network that supports the European Ph. D. Programme on Fusion Science and Technologies.

research areas @IST 1 - Energy

2 - Basic Sciences

3 - Information and Communication Technologies

4 - Nanoscience, microtechnology & materials

research groups @IST 1 - Experimental Physics on Magnetic Nuclear Fusion

2 - Microwave Diagnostics

3 - Theory and Modeling of Magnetic Fusion Plasmas

4 - Control and Data Acquisition

5 - Lasers and Plasmas

6 - Gas Electronics and Discharges

1 - Energy

2 - Basic Sciences



1 - Energy

2 - Basic Sciences



R&D cooperation EFDA-European Fusion Development Agreement, Max-Planck Institut fur PlasmaPhysik(GE), ITER, CIEMAT (SP), CRPP-EPFL (SW), UKAEA(UK), CEA (FR), USP (BR)

11

CEG-IST - Centro de Estudos de Gestão do IST

Director Prof. Paulo Correia


1

contacts address: Instituto Superior Técnico, DEG, Av. Rovisco Pais, 1049-001 Lisboa, Portugal

mail: [email protected] tel: (+351) 21 8417729

fax: (+351) 21 8417979 URL:

http://fenix.ist.utl.pt/investigacao/CEG-IST

mission The Centre for Management Studies of IST (CEG-IST) integrates a multidisciplinary research and development team with twenty six PhDs, most of them belonging to the Department of Engineering and Management of IST.

Scientific Areas: Decision and Information, Strategy and Organization, Operations and Logistics, Sustainable Development, Economics and Finance, Knowledge Integration.

research areas @IST Engineering, Economics and Management (E-E&M)

research groups @IST 1 - Decision & Information

2 - Economics & Finance

3 - Operations & Logistics

4 - Strategy & Organization

5 - Sustainable Development

Engineering, Economics and Management (E-E&M)Engineering, Economics and Management (E-E&M)

R&D cooperation

12

Faculty

13

Computers

14

Augusto Júlio Domingues Casaca

position Full Professor Ph.D. 1979 Univ. of Manchester, UK

research unit INESC-ID

contacts mail: [email protected] tel: (+351) 213100233

url: http://fenix.ist.utl.pt/homepage/ist10660

keywords Communication Protocols, Wireless Sensor Networks, Delay Tolerant Networks, Situation Management Systems.

research interests The research interests are presently centered in the area of computer networking. The main research interests are centered on the application of wireless communications for real-time control of vehicles in an airport environment, on the evolution of the IP network architecture, on the architecture of wireless sensor networks and on delay tolerant networks. The present research interests are materialised by the participation in the European research projects Euro-NF (Anticipating the Network of the Future),WSAN4CIP (Wireless Sensor and Actuator Networks for Critical Infrastructure Protection) and LocON (Platform for an inter-working of embedded localisation and communication systems).

3 publications G. Pestana, A. Kuvonen, A. Kurz, A. Casaca, “Location-based services to improve aircraft ground handling and safety procedures”, European Journal of Navigation, Vol. 8, No. 3, pp. 16-21, December 2010.

A. Grilo, A. Casaca, M. Nunes, C. Fortunato, “Wireless Sensor Networks for the Protection of an Electrical Energy Distribution Infrastructure”, in IFIP AICT 328, IFIP TC11 International Conference CIP 2010, Springer, ISSN 1868-4238, pp. 373-383, September 2010.

J. Santiago, A. Casaca, P. Pereira, "Multicast in Delay Tolerant Networks Using Probabilities and Mobility Information", Ad Hoc and Sensor Wireless Networks Journal, Vol. 7, Number 1-2, pp. 51-68, January 2009.

R&D cooperation In most recent years, cooperation with ANA Aeroportos, EDP and INA at national level. - Cooperation with several industrial and university partners at European level within the research projects.

https://fenix.ist.utl.pt/homepage/ist10660

15

Isabel Maria Martins Trancoso

position Full Professor Ph.D. 1987 IST, TU Lisbon



url: http://www.l2f.inesc-id.pt/~imt/

keywords Speech, Recognition, Synthesis

research interests Speech synthesis and recognition, namely for the Portuguese language; Speech coding (PhD topic, area in which she holds an international patent); Language and dialect identification, including processing other varieties of Portuguese; Application of natural language processing (NLP) techniques to spoken documents: topic detection, machine translation, summarization, information retrieval, etc.; Spontaneous speech processing, namely in what concerns disfluencies and emotions; Application of language processing techniques to computer aided language learning (Portuguese for foreign students)

3 publications I. Trancoso, Codificação de Fala, Comunicações Audiovisuais: Tecnologias, Normas e Aplicações, IST Press, 2009.

J.-L. Rouas, I. Trancoso, C. Viana, M. Abreu, "Language and variety verification on broadcast news for Portuguese", Speech Communication, Elsevier, Vol. 50, No. 11-12, 2008.

D. A. Caseiro, I. Trancoso, "On-the-Fly Specialized Algorithm for Lexicon and Language Model Composition", IEEE Transactions on Speech and Audio Processing, 2006.

R&D cooperation RTP (PT), Portugal Telecom (PT)

16

Luís Miguel Teixeira D'Ávila Pinto da Silveira

position Full Professor Ph.D. 1994 MIT - Massachusetts Institute of Technology



url: http://algos.inesc-id.pt/~lms

keywords Electronic Design Automation, Model Order Reduction, Circuit Simulation, Interconnect Modeling, Parallel Computing

research interests Research activity related to the analysis and development of efficient numerical algorithms for design automation problems. Focus has been on various aspects of computer-aided design of integrated circuits with emphasis on parallel computer algorithms and the theoretical and practical issues concerning numerical simulation methods for circuit design problems. Topics have included problems in modeling, extraction and simulation such as timing analysis, variability-aware timing analysis and verification, modeling of frequency-described systems, model order reduction techniques for the analysis of interconnect and packaging effects, modeling and analysis of nonlinear systems, including macromodeling generation, modeling and analysis of massively coupled linear dynamic systems, such as substrate networks or power grids.

3 publications L. Guerra e Silva, J. R. Phillips, L. Miguel Silveira, "Effective corner-based techniques for variation-aware IC timing verification", IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems, Vol. 29, No. 1, pp. 157-162, January 2010.

J. F. Villena, L. M. Silveira, "SPARE: a scalable algorithm for passive, structure preserving parameter-aware model order reduction", IEEE Transactions on Computer- Aided Design of Integrated Circuits and Systems, Vol. 29, No. 6, pp. 925-938, June 2010.

J. M. Silva, J. R. Phillips, L. Miguel Silveira, Efficient simulation of power grids, IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems, Vol. 29, No. 10, pp. 1523-1532, October 2010.

R&D cooperation Associate Member of the Cadence Research Laboratories, Cadence Design

Systems (USA). Colaboration with NXP (NL), Magwel (B), Infineon (DE), AustriaMicroSystems (A). Ongoing collaborations with TU Eindhoven (NL) UFRGS (BR), MIT (USA).

17

Mário Serafim dos Santos Nunes




url: http://comp.ist.utl.pt/msn

keywords Wireless Networks, Quality of Service.

research interests Computer Networks. Wireless Networks. Quality of Service (QoS) in IP Networks. End-to-end QoS in audio and video services

3 publications M. Macedo, A. Grilo, M. Nunes, “Distributed Latency-Energy Minimization and Interference Avoidance in TDMA Wireless Sensor Networks”, Computer Network Journal, Elsevier, Vol. 53, No. 5 , pp 569-582, April 2009.

R. Cruz, M. Nunes, L. Meneses, J. Domingues, “IPTV Architecture for an IMS Environment with Dynamic QoS Adaptation”, Multimedia Tools and Applications, Springer, May 2010.

J. Monteiro, C. Calafate, M. Nunes, "Robust Multipoint and Multi-layered Transmission of H.264/SVC with Raptor Codes", for the "Special Issue on the Quality of Experience issues in Multimedia Provision", Telecommunication Systems, Springer, June 2010.

R&D cooperation Cooperation with several universities and industrial partners mainly in the scope of European Research projects, namely NTUA (GR) QMUL (UK), BBC (UK),Fraunhofer (GE), Siemens (GE). At national level, the main cooperation has been with ANA (PT), EDP (PT), Portugal Telecom (PT), NSN (PT), Critical Software (PT).

18

Rui Jorge Morais Tomaz Valadas

position Full Professor Ph.D.

research unit IT

contacts mail: [email protected] tel: 218417676


keywords

research interests

3 publications

R&D cooperation

19

Guilherme Dinis Moreno da Silva Arroz

position Associate Professor Ph.D. 1986 IST, TU Lisbon

research unit IST/DEEC



keywords Digital Systems; Computer Architecture; Asynchronous systems

research interests In the moment I am too much involved in Academic Management to be serious about research

3 publications G. Arroz, J. Monteiro, A. Oliveira, Arquitectura de computadores: dos Sistemas Digitais aos Microprocessadores, IST Press, 2007.

A. Varela, T. Vasques, G. Arroz, "An integrated approach to service management in the next generation Internet", EuroFGI Workshop in IP QoS and Traffic Control, IST Press, December 2007.

J. Rufino, P. Veríssimo, G. Arroz, "Node Failure Detection and Membership in CANELy", IEEE International Conference on Dependable Systems and Networks, June 2003.

R&D cooperation

20

Horácio Cláudio de Campos Neto




url: http://esda.inesc-id.pt/~hcn/

keywords Reconfigurable Computing, Digital Systems Design, Computer Architecture

research interests His main research interests are Computer Architecture and Digital Systems Design, with emphasis in Reconfigurable Computing. Reconfigurable computing (RC) involves the use of reconfigurable hardware for computing purposes. Reconfigurable devices, such as field-programmable gate-arrays (FPGAs) can be (re)configured, even in the middle of a computation, to implement specific hardware designs. By directly adapting the hardware to the needs of a given algorithm, RC systems are able to outperform conventional processor solutions for a wide variety of applications. The research on reconfigurable architectures focuses on the design of specific computing systems for applications that require more processing power than can be provided by traditional microprocessors.

3 publications V. Silva, J. R. Fernandes, L. B. Oliveira, H. C. Neto, R. Ferreira, S. Freitas, P. P. Freitas, "Thermal Assisted Switching Magnetic Tunnel Junctions as FPGA Memory Elements", International Journal of Microelectronics and Computer Science, 332-336, Octiber 2009.

M. Véstias, H. C. Neto, "Dynamic Reconfigurable Network-on-Chip Design: Innovations for Computational Processing and Communication", book chapter: Dynamically Reconfigurable Networks-on-Chip using Runtime Adaptive Routers, IGI Global, April 2010.

R. Duarte, H. C. Neto, M. P. Véstias, "Double-Precision Gauss-Jordan Algorithm with Partial Pivoting on FPGAs", IEEE Euromicro Conference on Digital System Design Architectures, Methods and Tools, 2009.

R&D cooperation

21

Rui Manuel Rodrigues Rocha


research unit IT


url: http://www.it.pt/person_detail_p.asp?ID=566

keywords

research interests Heterogeneous networks area, namely on self-organised networks and embedded networked systems.

3 publications J. M. Soares, M. Franceschinis, R. M. Rocha, W. Zhang, M. A. Spirito; "Opportunistic Data Collection in Sparse Wireless Sensor Networks", in EURASIP Journal on Wireless Communications and Networking, Vol. 2011, Article ID 401802, 20 pages, 2011.

N. Antunes, A. Pacheco, R. M. Rocha, "An Integrated Traffic Model for Multimedia Wireless Networks", Computer Networks & ISDN Systems, Vol. 38, No. 1, pp. 25 - 41, January, 2002.

R. Rocha, A. Casaca, " Residential Oriented Customer Premises Network based on ATM principles", book chapter, High-Speed Networking for Multimedia Applications , Kluwer Academic, 1996.

R&D cooperation

22

Teresa Maria Sá Ferreira Vazão Vasques

position Associate Professor Ph.D.


contacts mail: [email protected] tel:


keywords

research interests

3 publications P. Estrela, T. Vasques, M. Nunes, "Performance Evaluation of the TIMIP/sMIP Terminal Independent Mobile Architecture", Special Issue of HetNet Conference - Next Generation Internet: Performance Analysis and Applications, Wireless Personal , to appear. Kluwer Academy Publishers

R. L. Pereira, T. Vasques, R. Rodrigues, "On the Impact of P2P File Sharing Traffic Restrictions on User Perceived Performance", International Conference on Information Networking, January 2008.

A. Varela, T. Vasques, G. Arroz, "An integrated approach to service management in the next generation Internet", EuroFGI Workshop in IP QoS and Traffic Control, IST Press, December 2007.

R&D cooperation

23

João Luís Costa Campos Gonçalves Sobrinho


research unit IT



keywords Computer networks; networking; communication protocols; routing protocols; Internet; medium access control; wireless LANs

research interests My work focuses on communication network protocols, understood as the collection of distributed algorithms that secure communication between geographically dispersed entities. I am interested both in the design of communication protocols as well as in their mathematical properties. Especially, I research routing protocols and medium access protocols. The former protocols are those that make messages in a network travel from their origins to their intended destinations. Particularly relevant in my work are the Internet routing protocols, such as OSPF and BGP, which provide global Internet connectivity in a distributed environment composed of thousands of competing Internet Service Providers. The medium access protocols are those that make communication possible in a shared broadcast medium. Here, my main interest is on protocols for wireless LANs. From a broader viewpoint, I am keen on the general correctness and analysis of algorithms for communication networks.

3 publications J. L. Sobrinho, An Algebraic Theory of Dynamic Network Routing, IEEE/ACM Transactions on Networking, 2005.

T. Griffin, J. L. Sobrinho, Metarouting, ACM SIGCOMM, 2005.

J. L. Sobrinho, Algebra and Algorithms for QoS Path Computation and Hop-by-Hop Routing in the Internet, IEEE/ACM Transactions on Networking, 2002.

R&D cooperation

24

António Manuel Raminhos Cordeiro Grilo

position Assistant Professor Ph.D. 2004 IST, TU Lisbon




keywords Wireless and Mobile Networking, Mobile Ad-hoc Networks, Wireless Sensor Networks.

research interests Mobile Ad-hoc Networks (MANET)s: Wireless networks with the apability to self-organize on-the-fly without the need for a communications infrastructure. MANET nodes can usually take the roles of endpoints and relay nodes simultaneously. MANETs are mainly useful to allow communications to be established in environments where a communications infrastruture (e.g. cellular networks) is not available or reliable. Examples of MANET applications are battlefield communications, disaster relief operations, rescue operations, cooperative work between meeting participants, sensor networks, etc. Wireless Sensor Networks (WSN)s: a particular instantiation of ad-hoc networks. In WSNs sensor nodes self-organize to allow the communications of sensing data towards special gateway nodes, which in turn communicate directly with the monitoring platforms.

3 publications A. Grilo, Distributed Latency-Energy Minimization and Interference Avoidance in TDMA Wireless Sensor Networks, Elsevier Computer Communications Journal, Vol. 55, No. 5, 2009.

A. Grilo, "The use of wireless networks for the surveillance and control of cooperative vehicles in an airport", Springer Telecommunication Systems , Vol. 36, No. 1-3, 2007.

A. Grilo, "Electronic Protection and Routing Optimization of MANETs Operating in an Electronic Warfare Environment", Elsevier Ad Hoc Networks Journal, Vol. 7, No. 7, 2007.

R&D cooperation FP7 WSAN4CIP "Wireless Sensor and Actuator Networks for Critical Infrastructure Protection", FP6 EuroFGI "Design and Engineering of the Future-Generation Internet" (European Network of Excellence).

Collaboration with the Portuguese Military Academy.

25

Bertinho Manuel D'Andrade da Costa



contacts mail: [email protected] tel: (+351) 21 8417241

url: http://ramses.inesc.pt/

keywords Adaptive control. Predictive control. Control Applications

research interests Present: Control od Solar Furnaces; Control of Anesthesia. Past: To explore control principles for congestion control in IP networks. To develop control algorithms for temperature control in a biochip

3 publications B. Costa, J. M. Lemos, "An adaptive temperature control law for a solar furnace", Control Engineering Pratice, Elsevier, Vol. 17, No. 10, 2009.

M. Piedade, L. Sousa, T. Almeida, J. Germano, B. Costa, J. M. Lemos, P. Freitas, H.A. Ferreira, F. Cardoso,"A New Hand-held Microsystem Architecture for Biological", IEEE Transactions on Circuits and Systems I: Regular Papers, Vol. 53, No. 11, 2006.

B. Costa, M . Silva, J. M. Lemos, T. Mendonça, "Neuromuscular Blockade Nonlinear Model Identification", Mediterranean Conference on Control and Automation, 2009.

R&D cooperation - 2007 Project: SOLCONTROL, B. Andrade Costa, J. M. Lemos INESC-ID/IST, Portugal - Adaptive Temperature Control of a Solar Furnace. PROMES-Odeillo-France

26

Carlos Manuel Ribeiro Almeida

position Assistant Professor Ph.D. 1999


contacts mail: [email protected] tel: (+ 351 218418397) (ext 2397)

url: http://comp.ist.utl.pt/cra

keywords Real-time and embedded systems, distributed systems, fault-tolerance, group communication, QoS adaptability, sensor networks

research interests There is a proliferation of embedded systems with increasing requirements in what concerns real-time and dependability. Devices such as cellular phones, PDAs, control systems with ``smart'' sensors and actuators, are examples of those embedded systems. Despite the technological evolution, in terms of processing power and chip integration, many of these devices still show limitations regarding available resources. The need to obtain devices that are small in size, with low power consumption, and low cost, implies that resources such as processing power and memory capacity can not grow in an uncontrolled way. On the other hand, the complexity and the requirements associated with the applications are ever increasing. Sometimes, besides strict temporal and dependability requirements, it is necessary to conciliate them with functional requirements that imply the utilization of generic use components (COTS).

3 publications M. Coutinho, J. Rufino, C. Almeida, "Control of event handling timeliness in RTEMS", IASTED International Conference on Parallel and Distributed Computing Systems, November 2005.

C. Almeida, "Handling QoS in a Dynamic Real-Time Environment", IEEE International Workshop on Object-Oriented Real-Time Dependable Systems, January 2003.

C. Almeida, "Dynamic QoS Adaptability in Quasi-Synchronous Systems", IASTED International Conference on Parallel and Distributed Computing and Systems, November 2002.

R&D cooperation

27

Fernando Henrique Corte Real Mira da Silva

position Assistant Professor Ph.D.




keywords Machine learning, networking

research interests Machine learning, data mining, computer networks.

3 publications "Quality of Service Policy Management over a DiffServ Network", International Conference on Telecommunications, 2005.

F. M. Silva and Luís B. Almeida, "A Distributed Decorrelation Algorithm", Neural Networks: Advances and Applications, E. Gelenbe, Ed., North-Holland, 1991.

F. M. Silva, L. B. Almeida, "Speeding-Up Backpropagation", International Symposium on Neural Networks for Sensory and Motor Systems, March 1990.

R&D cooperation

28

João Paulo Baptista de Carvalho




url: comp.ist.utl.pt/uke

keywords Computational Intelligence; Fuzzy Sets and Systems; Fuzzy Boolean Nets; Cognitive Maps

research interests His research interests are in the area of Computational Intelligence, which includes topics such as Fuzzy Systems, Neural Networks, Genetic Algorithms, Evolutionary Computation and hybrid systems that incorporate the best properties of previous techniques. Current research interests are centered around Rule Based Fuzzy Cognitive Maps, and Fuzzy Boolean nets. His research results have been applied in projects like Modelling and Simulation of Qualitative Dynamic Systems (economic systems, forest fire simulation, cognitive maps, etc), Navigation Decision Systems, Author Fingerprinting, etc.

3 publications L. P. Pereira, J. P. Carvalho, C. Guedes Soares, Fuzzy-logic based decision making system for collision avoidance of ocean navigation under critical collision conditions, Journal of Marine Science and Technology, Vol. 16, No. 1, pp. 84-99, March 2011.

N. Homem, J. P. Carvalho, Finding top-k elements in data streams, Information Sciences, Vol. 180, No. 24, pp. 4958-4974, Dec. 2010.

J. P. Carvalho, J. Tomé, Qualitative Optimization of Fuzzy Causal Rule Bases using Fuzzy Boolean Nets, Fuzzy Sets and Systems, Vol. 158, No. 17, pp. 1931-1946, September 2007.

R&D cooperation

29

Nuno Cavaco Gomes Horta


research unit IT

contacts mail: [email protected] tel: (+351) 218418093 (ext 2093)


keywords Analog Integrated Circuits, Design Automation, Evolutionary Computation, Symbolic Analysis, Multi-Objective Optimization, Circuit Synthesis, Layout Generation.

research interests Analog and Mixed-Signal IC Design and Design Auttomation Methodologies as main research areas including subtopics such as Evolutionary Computation, Automatic Learning, Intelligent Optimization, System and Device Modeling, Circuit and System Synthesis, Layout Generation, High-Performance Analog and Mixed-Signal IC Design and Emerging IC Technologies.

3 publications M. Barros, J. Guilherme, N. C. Horta, "Analog Circuits Optimization based on Evolutionary Computation Techniques", Book in Studies in Computational Intelligence Series, Springer, No. 294, 2010.

M. Barros, J. Guilherme, N.C. Horta, "Analog Circuits Optimization based on Evolutionary Computation Techniques" , Integration, the VLSI Journal, Elsevier, Vol. 43, No. 1, pp. 136 - 155, January 2010.

A. Silva, J. Guilherme, N. Horta, "Reconfigurable multi-mode sigma–delta modulator for 4G mobile terminals", INTEGRATION, the VLSI journal, Elsevier, Vol. 42, No. 1, pp. 34-46, Jan 2009.

R&D cooperation

30

Paulo Alexandre Crisóstomo Lopes




url: sips.inesc-id.pt/~pacl

keywords Active Noise Control, Power Line Communications, Biochips, Digital Signal Processing, Adaptive Systems

research interests Active Noise Control techniques reduce acoustic noise and vibrations using transducers (ex: speakers) that generate waves of anti-noise with phase opposite to the original noise, reducing the noise level in a given area. The anti-noise signal is generated using sophisticated digital signal processing techniques. Power line communication systems allow the creation of high speed telecommunication networks without the need to had new cables. However the power line channel was not thought for telecommunications use, and requires techniques that can eliminate the high levels of inter-symbolic interference and noise, like digital systems width OFDM or CDMA modulations and noise reduction. In the biochips field, new magnetic sensors arrays and signal processing techniques are being developed with the aim of producing new portable mini laboratories able to make different kinds of clinical analysis and DNA recognition.

3 publications L. Sousa, M. Piedade, J. Germano, T. Almeida, P. Lopes, F. Cardoso, P. Freitas, "Generic Architecture Designed for Biomedical Embedded Systems", IFIP Advances in Information and Communication Technology, 2007, Volume 231, pp. 353-362, 2007.

T. Almeida, P. Lopes, J. Germano, L. Sousa, M. Piedade, F. Cardoso, H. Ferreira, P. Freitas, "Determination of Biological Expression Signals on a New Handheld Biochip-based Microsystem", IEEE BIOCAS, 2009.

T. Almeida, M. Piedade, P. Lopes, L. Sousa, J. Germano, F. Cardoso, H. Ferreira, P. Freitas, "Microsystem for Biological Analysis Based nn Magnetoresistive Sensing", IMEKO World Congress, Metrology for a Sustainable Development, 2011.

R&D cooperation

31

Paulo Rogério Barreiros de Almeida Pereira




url: http://mariel.inesc-id.pt/people/prbp.html

keywords Computer Networks, Quality of Service, Network Management, Wireless Sensor Networks, Delay-Tolerant Networks

research interests The research interests cover the generic area of Computer Networks. The topics that raise greater interest are Quality of Service in IP Networks, Differentiated Services, Network Management, Service Level Management and the use of Policies for Network Management, Wireless Sensor Networks and Vehicular Delay-Tolerant Networks.

3 publications P. Pereira (Editor), Proceedings of the EuroFGI Workshop on IP QoS and Traffic Control. IST Press, 2007.

J. Santiago, A. Casaca, P. Pereira, "Multicast in Delay Tolerant Networks using Probabilities and Mobility Information", Ad Hoc & Sensor Wireless Networks, An International Journal, vol. 7, 1-2, pp. 51-68, 2009.

J. Almeida, A. Grilo, P. Pereira, "Multimedia Data Transport for Wireless Sensor Networks", EuroNGI Conference on Next Generation Networks, July 2009.

R&D cooperation

32

Pedro Filipe Zeferino Tomás




url: sips.inesc-id.pt/~pfzt

keywords Specialized Computer Architectures, statistical signal processing

research interests I have recently become interested in specialized computer architectures for the efficient execution of computationally demanding algorithms, e.g., for bioinformatics and biomedical applications. Such architectures must be composed by a specialized multi-core hardware layer and a software layer that enables and eases algorithm programming. Furthermore, due to past and current research projects, I am also working with statistical processing algorithms for neuroscience and neurology applications. In particular I am interested in data mining algorithms for prognostic prediction of neurological disorders.

3 publications P. Tomás, L. Sousa, Statistical Analysis of a Spike Train Distance in Poisson Models, IEEE Signal Processing Letters, vol. 15, pp. 357-360, April 2008.

J. C. Martins, P. Tomás, L.Sousa, Neural Code Metrics: Analysis and Application to the Assessment of Neural Models, Neurocomputing, vol. 72, pp. 2337-2350, June 2009.

M. S. Piedade, J. B. Gerald, L. Sousa, G. Tavares, P. Tomás, Visual Neuroprosthesis: A Non-Invasive System for Stimulating the Cortex, IEEE Transactions on Circuits and Systems I – Regular papers, IEEE, vol. 6, n. 12, pp. 2648-2662, December 2005.

R&D cooperation

33

Rui Fuentecilla Maia Ferreira Neves


research unit IT


url: http://web.tagus.ist.utl.pt/~rui.neves/

keywords Embedded systems, security in embedded systems, wireless sensor networks, data fusion, analog and mixed-signal ic design.

research interests Current research activities are in the area of embedded systems. The design of mixed signal Integrated Circuits for embedded systems. Security en embedded systems. Applications of wireless sensors networks.

3 publications R. Gama, A. Galhardo, J. Goes, N. Paulino, R. Neves, N. Horta, "Low-Power Open Loop Multiply-by-two Amplifier with Gain-accuracy Improved by Local-Feedback", International Journal of Microelectronics and Computer Science, Vol. 1, pp. 19-24, 2010.

J. Antunes, N. Neves, M. Correia, P. Verissimo, R. Neves, "Vulnerability Removal with Attack Injection", IEEE Transactions of Software Engineering, Vol 36, pp. 357-370, 2010.

L. D. Pedrosa, P. Melo, R. M. Rocha, R. Neves, "A Flexible Approach to WSN Deployment", International Journal of Sensor Networks, Inderscience, Vol. 6, Nos. 3/4, pp. 199-211, 2009.

R&D cooperation

34

Rui Gustavo Nunes Pereira Crespo



contacts mail: [email protected] tel: (+351) 218418398 (ext2398)

url: http://comp.ist.utl.pt/rgc

keywords Feature interactions, Protocol specifications, Computer network security.

research interests Main interest is feature interaction. A feature is defined as a unit of functionality existing in a system and is usually perceived as having a self-contained functional. The combination of features may result in undesired behaviours and this problem is known as feature interaction. The adaptation of features to the distributed Internet system, with different applications, multi-vendor and multi-provider environments raises new challenging problems for FI resolution.

3 publications A. V. Calvinho, R. Crespo, Email FI Identification and Resolution with Model Checking, Journal of Network and Computer Applications, 2011 (accepted for publication)

R. Crespo, Detecting and Resolving Email Feature Interactions Through Constraints, IET Software, Vol. 5, No. 2, pp 238-245, April 2011.

R. Crespo, Predicting feature interactions by using inconsistency models, Computer Networks, Vol. 54, No. 3, pp 416-427, February 2010.

R&D cooperation Communications Software Engineering Research Group, University of Ottawa (CA), Computer Security Laboratory, UC Davis (USA), Communications and Services research group, University of Stirling (UK).

35

Electronics

36

António Manuel da Cruz Serra


research unit IT


url: http://www.it.pt/person_detail_p.asp?id=503

keywords Instrumentation and Measurement, Data acquisition, Data processing, Automatic Measuring Systems, Biomedical Instrumentation.

research interests Analog to Digital Converters Testing, Digital signal processing, Virtual Instrumentation.

3 publications N. Brás, R. C. M. Martins, A. Cruz Serra, “A Fast Forward Problem Solver for the Reconstruction of Biological Maps in Magnetic Induction Tomography IEEE Transactions on Magnetics, Vol. 46, No. 5, pp. 1193 - 1202, May, 2010.

P. M. Ramos, M. F. Silva, R.C.M. Martins, A. Cruz Serra; "Simulation and Experimental Results of Multiharmonic Least-Squares Fitting Algorithms Applied to Periodic Signals", IEEE Transactions on Instrumentation and Measurement, Vol. 55, No. 2, pp. 646 - 651, April, 2006.

F. Alegria, P. Arpaia, P. Daponte, A. Cruz Serra, "An ADC Histogram Test Based on Small-Amplitude Waves", Measurement, Elsevier Science B. V., Vol. 31, No. 4, pp. 271-279, June 2002.

R&D cooperation

37

Leonel Augusto Pires Seabra de Sousa




url: http://sips.inesc-id.pt/las

keywords High Performance Computing, Multimedia Signal Processing, Electronics for Lab-on-Chip

research interests His research interests include High Performance Computing, Micro-architectures for General Purpose and Specialized Processors, and Multimedia Systems. During the last ten years he has been investigating efficient algorithms and architectures to develop efficient real-time processing systems.

3 publications O. Sinnen, L. Sousa, F. Sandnes, "Towards a Realistic Task Scheduling Model", IEEE Transactions on Parallel and Distributed Systems, Vol. 17, No. 3, 263-275, March 2006.

M. Piedade, J. Gerald, L. Sousa, G. Tavares, P. Tomás, "Visual Neuroprosthesis: A Non-Invasive System for Stimulating the Cortex", IEEE Transactions on Circuits and Systems I - Regular papers, Vol. 6, No. 12, 2648-2662, December 2005.

L. Sousa, R. Chaves, "A Universal Architecture for Designing Efficient Modulo 2^n+1 Multipliers", IEEE Transactions on Circuits and Systems-I: Regular Papers, IEEE, Vol. 52, No. 6, 1166-1178, June 2005.

R&D cooperation

http://sips.inesc-id.pt/las

38

Moisés Simões Piedade





keywords signal and image processing

research interests Image and Video Processing. Signal Processing for Telecommunications. Adaptive Signal Processing. Noise Cancelling. Medical and Biological Applications

3 publications M. Piedade, L.Sousa, T. Almeida, J. Germano, B. Costa, J. M. Lemos, P. Freitas, H. A. Ferreira and F. Cardoso. A New Hand-held Microsystem Architecture for Biological Analysis, IEEE Transactions on CIrcuits and Systems I: Regular Papers, IEEE, vol. 53, n. 11, pp. 2384-2395, November 2006.

M. Piedade, J. Gerald, L. Sousa, G. Tavares, P. Tomás, "Visual Neuroprosthesis: A Non Invasive System for Stimulating the Cortex", IEEE Transactions on Circuits and Systems I, Vol. 52, No. 12, pp. 2648-2662, December 2005.

G. N. Tavares, L. M. Tavares, M. S. Piedade, "On the Miller-Chang Lower Bound for NDA Carrier Phase Estimation", IEEE Transactions on Communications, Vol. 52, No. 11, pp. 1867-1871, November 2004.

R&D cooperation

39

Pedro Manuel Brito da Silva Girão


research unit IT


url: http://web.ist.utl.pt/psgirao

keywords Instrumentation, Measurement, Metrology, Quality, Environmental Measurement, Sensors, Actuators, Data acquisition, Data processing, Automated Measuring Systems, Telemetry, Virtual Instrumentation.

research interests Sensors and actuators. Environmental Measurements. Biomedical instrumentation. Telemetry. Automated measuring systems. Digital signal processing. Virtual instrumentation

3 publications O. Postolache, P.M. Girão, J.M. Joaquim, E.C. Pinheiro, G. Postolache; "Physiological Parameters Measurement Based on Wheelchair Embedded Sensors and Advanced Signal Processing", IEEE Transactions on Instrumentation and Measurement, Vol. 59, No. 10, pp. 2564 - 2574, October 2010.

O. Postolache, J.M. Dias Pereira, P.M. Girão; "Smart Sensors Network for Air Quality Monitoring Applications", IEEE Transactions on Instrumentation and Measurement, Vol. 58, No. 9, pp. 3253 - 3261, September 2009.

O.A. Postolache, J.M.C. Dias Pereira, P. M. B. Silva Girão; “Virtual Instrumentation”. Advances in Data Modeling for Measurements in the Metrology and Testing Fields. Editors: Franco Pavese (INRIM), Alistair Forbes (NPL). Series “Modeling and Simulation i

R&D cooperation Technical University "Gh. Asachi", Iasi (RO); Faculdade de Engenharia da Universidade do Porto (P); Instituto Politécnico de Setúbal (P).

40

Artur Fernando Delgado Lopes Ribeiro

position Associate Professor (with Habilitation) Ph.D.

research unit IT



keywords

research interests

3 publications V. Malo Machado, A. L. Ribeiro, "Free Regimes in Electrical Circuits in the Presence of Ferromagnetic Hysteresis", IEEE Transactions on Magnetics, Vol. 37, No. 5, 2001.

A. Lopes Ribeiro, "Two-dimensional hysteresis modelling and loss evaluation", Journal of Magnetism and Magnetic Materials, pp. 226-230, 2001.

Vitor Malo Machado, A. Lopes Ribeiro, "Eddy Current and Hysteresis Losses in Ferromagnetic Media", IEEE Transactions on Magnetics, Vol. 34, No. 4, 1998.

R&D cooperation

41

Carlos Alberto Ferreira Fernandes

position Associate Professor (with Habilitation) Ph.D. 1988 IST, TU Lisbon

research unit IT


url: http://web.ist.utl.pt/ist11873

keywords Semicondutor materials and devices. Optoelectronic devices. Semiconductor LASERs.

research interests My work concerns the study of DFB laser structures to operate under high speed direct modulation. In order to ensure a stable single longitudinal mode operation, a comparative analysis for several modified DFB laser structures has been carried out using matricial techniques, namely the transfer matrix method (TMM). The simulation models are used to obtain the main laser figures of merit, such as the laser discrimination, especially important to achieve single mode oscillation. Above-threshold calculations are carried out taken into account the hole-burning effects.

3 publications C. Fernandes, J. Morgado, J. Boavida, "Optimisation of an Asymmetric Three Phase-Shift Distributed Feedback Semiconductor Laser Structure Concerning the Above-Threshold Stability", European Physical Journal - Applied Physics, Vol. 46, No. 3, 2009.

J. Boavida, J. Morgado, C. Fernandes, "Optimisation of a corrugation-pitch-modulated DFB laser structure with inhomogeneous coupling coefficient for stable single longitudinal mode operation", European Physical Journal - Applied Physics, Vol. 48, No. 3, 2009.

C. Fernandes, "Hole-Burning corrections in the stationary anlysis of DFB laser diodes", Materials Science & Engineering B - Solid State Materials for Advanced Technology, Vol. B74/1-3, pp. 75-79, May 2000.

R&D cooperation

42

Helena Maria dos Santos Geirinhas Ramos


research unit IT



keywords Instrumentation and measurements, PC- based Instrumentation, Transducers, ADC Testing, Automated Measurement Systems, Interfaces, Ferromagnetic Materials Characterization.

research interests The research activity has been focused in the ferromagnetic materials study, in the instrumentation and electrical measurements, in the automated measurements systems, in the ADC testing, in the transducers and in the communication interfaces. She developed work in the magnetic hysteresis modelling, in the signal processing and in virtual instrumentation solutions, in order to support her research activities. She has already participated and she has been leader of research projects in the following areas: ADC testing, environment monitoring and civil structures instrumentation.

3 publications H. Ramos, P. Girão, "Measurement of Low Level DC Magnetic Fields Using a Synchronous Demodulation Technique", IEEE Transactions on Instrumentation and Measurement, Vol. 42, No.2, pp. 544-546, April 1993.

H. Ramos, M. Pereira, V. Viegas, O. Postolache, P. Girão "A Virtual Instrument to Test Smart Transducer Interface Modules (STIMs)", IEEE Transactions on Instrumentation and Measurement, Vol. 53, No.4, pp. 1232-1239, August 2004.

O. Postolache, P. Girão, M. Pereira, H. Ramos, "Self Organizing Maps Application in a Remote Water Quality Monitoring System", IEEE Transactions on Instrumentation and Measurement, Vol. 54, No.1, pp.322-329, February 2005.

R&D cooperation

43

João José Lopes da Costa Freire

position Associate Professor (with Habilitation) Ph.D. 1984

research unit IT

contacts mail: [email protected] tel: : (+351) 218418483


keywords Microwaves, Radio-frequency, Millimeterwave, Wireless communications, Transceivers, Monolithic Microwave Integrated Circuits (MMICs), Semiconductor Devices.

research interests Research activities on modelling semiconductor devices for computer aided design of linear and non-linear Radio, Microwave and Millimeterwave circuits, and test and integration of silicon and GaAs Monolithic Microwave Integrated Circuits (MMICs) on transceivers for wireless communication systems. Design, test and integration of monolithic (MMICs) and hybrid (MICs) circuits for millimeterwave mobile (3rd and 4th generation) and satellite systems.

3 publications J. Torres, J. C. Freire, "Monolithic SPST Switch for L Band", IEEE Transactions on Microwave Theory and Techniques, Vol. 50, pp. 51-56

R. Sorrentino, et al., "Microwaves in Europe", IEEE Transactions on Microwave Theory and Tech., Vol. 50, No. 3, pp. 1056 – 1072, March 2002.

J. C. Vaz, J. C. Freire, "Millimeter Wave Monolithic Power Amplifier for Mobile Broadband System", IEEE Transactions on Microwave Theory and Techniques, Special Issue on Advances in RF/MW Power Amplifiers, vol. 49, pp. 1211-1215, June 2001.

R&D cooperation University of Eindhoven, The Netherlands, Universidad Politecnica de Madrid, Spain

44

Jorge Manuel Torres Pereira

position Associate Professor (with Habilitation) Ph.D. 1987 University of Rhode Island,USA

research unit IT



keywords Semiconductor materials, optoelectronic devices, photodetectors, semiconductor lasers.

research interests My main reseach interests are in the area of semiconductor materials and devices, namely optoelectronic devices. Some work has been done on the transport properties of amorphous and policrystalline materials and related structures. Regarding the optoelectronic devices, the research has been centered on the analysis and modelling of the dynamic response of MQW lasers and photodetectors, such as PIN and APD.

3 publications J. T. Pereira, "Modeling the frequency response of p+InP/n- InGaAs/n+InP photodiodes with an arbitrary electric field profile", The International Journal for Computation and Mathematics in Electrical and Electronic Engineering, Vol. 26, No. 4, pp. 1114-1122, 2007.

J. T. Pereira, "Frequency Response Simulation Analysis of InGaAs/InP SAM-APD Devices", Microwave and Optical Technology Letters, Vol. 48, No. 4, pp. 712- 717, 2006.

J. T. Pereira, "Large-Signal Modulation Response of 1.3 mm InGaAsP MQW Lasers", Microwave and Optical Technology Letters, Vol. 30, nº 6, pp. 375-378, 2001.

R&D cooperation

45

Mª Beatriz Mendes Batalha Vieira Vieira Borges


research unit IT



keywords High frequency power conversion, resonant converters, soft-switching, contactless energy transfer, power factor correction and active filtering, switching audio power amplifiers, EMI

research interests Research work has been developed in the following Power Electronics areas: high frequency switching power conversion, resonant and quasi resonant converters, soft-switching converters, power factor correction and active power filters, contactless energy transfer, CMOS integration of switched converters. PhD thesis supervisions in the areas of: Contactless resonant energy transfer, Soft-switching converters, CMOS integration of switched converters, Single stage power factor correctors, Active power filters and Switching Audio Amplifiers.

3 publications H. Ribeiro, M.B. Borges, "Analysis and Design of a High Efficiency Full-Bridge Single Stage Converter with Reduced Auxiliary Components", IEEE Transactions on Power Electronics, Vol. 25, No. 7, pp. 1850 - 1862, July, 2010.

H. Marques, A. Anunciada, M.B. Borges, "Power Grid Current Harmonics Mitigation Drawn on Low Voltage Rated Switching Devices with Effortless Control", Intrnl. Journal of Electrical Power & Energy Systems - Elsevier, Vol. 32, No. 1, pp. 87 - 99, January, 2010.

S. Valtchev, M.B. Borges, K. Brandisky and J. Ben Klaassens, "Resonant Contactless Energy Transfer with Improved Efficient", IEEE Trans. on Power Electronics, Vol. 24, No. 3, pp. 685 - 699, March, 2009.

R&D cooperation Silicon Gate

46

Carlos Francisco Beltran Tavares de Almeida

position Associate Professor Ph.D. 1986



url: http://calypso.inesc-id.pt/cfb/

keywords Research fields: design and test of electronic systems, interconnection and packaging of electronic systems; simulation and test of electronic circuits.

research interests The actual research field is focused in the development of new algorithms and techniques for circuit simulation, fault modelling and simulation, and test generation. The research field includes also the study and development of high density interconnection techniques for electronic systems and devices. Carlos Beltrán Almeida is Associate Professor at the Department of Electrical Engineering and Computers of IST, Technical University of Lisboa. A significant part of his academic activities consists in the lecture of disciplines in the area of Electronics, e.g., "Simulation and Test of Electronic Systems", "Digital MicroElectronics" or "General Electronics", targeting students of several different engineering courses (LEEC, LEE, LERCI).

3 publications J. Augusto, C. B. Almeida, "A Tool for Single-Fault Diagnosis in Linear Analog Circuits with Tolerance Using the T-Vector Approach," VLSI Design, Article ID 630951, 2008.

C. B. Almeida, I. Teixeira, J. P. Teixeira, M. Santos, N. Vaz Cardoso, J. Varela, et al., "Energy resolution of the barrel of the CMS Electromagnetic Calorimeter", Journal of Instrumentation, No. 2, pp. 1-18, Apr. 2007.

N. Cardoso, C. B. Almeida, J. Silva, "A System Level Boundary Scan Controller Board for VME Applications", Journal of Electronic, Testing and Applications, Vol. 17, No. 3, pp. 299-310, June 2001.

R&D cooperation

47

Maria Helena da Costa Matos Sarmento




url: http://esda.inesc-id.pt/~mhs

keywords Wireless communications, Ultra Wide Band, RFID, transceivers

research interests Research interests include electronic design at system level, for wireless communications (base band), using reconfigurable computing. Experimental investigation of these technologies is based on prototype development. From initial work on DECT and Bluetooth, current interests are on ultra wide band technologies for data communication. FPGA capabilities for UWB very high data rates are now being addressed, with the development of base band blocks for DS-UWB and MB-OFDM

3 publications A. Muchaxo, A. Sousa, N. Pereira, H. Sarmento, "Wireless Data Communications Using DECT Air Interface", ACM SIGCOMM Computer Communication Review, Vol. 29, No. 2, April 1999.

G. Gomes, H. Sarmento, "A Novel Approach to Indoor Location Systems Using Propagation Models in WSNs", International Journal on Advances in Networked Services, Vol. 2, No. 4, pp. 251-260, December 2009.

R&D cooperation

48

Francisco André Corrêa Alegria

position Assistant Professor (with Habilitation) Ph.D. 2002

research unit IT


url: http://falegria.ist.utl.pt

keywords Analog to digital converter, Test, Instrumentation, Measurements, Radiofrequency, Uncertainty, Histogram Test Method, Sinefitting, Automatic test systems, Electronics, Noise, Jitter

research interests Characterization of analog to digital converters (ADCs) using different methods (histogram, sinefitting, DFT) and the of the estimates. Study of the influence of additive noise, phase noise, uncertainty on the sampling instant, jitter and frequency error. Operation and use of measuring instruments. Measurement tecniques in teh analog and digital domains. Calibration. Measurements in radiofrequency.

3 publications F. Alegria, P. Arpaia, P. Daponte, A. Cruz Serra, "An ADC Histogram Test Based on Small-Amplitude Waves", Measurement Journal, Vol. 31, No. 4, 2002.

F. Alegria, P. Arpaia, A. Cruz Serra, Pasquale Daponte, "Performance Analysis of an ADC Histogram Test Using Small Triangular Waves", IEEE Transactions on Instrumentation and Measurement, Vol. 51, No. 4, 2002.

F. Alegria, A. Cruz Serra, "Overdrive in the Ramp Histogram Test of ADCs", IEEE Transactions on Instrumentation and Measurement, Vol. 54, No.6, 2005.

R&D cooperation

49

Jorge Manuel dos Santos Ribeiro Fernandes

position Assistant Professor (with Habilitation) Ph.D. 2000 IST, TU Lisbon



url: http://www.inesc-id.pt

keywords RF and Mixed-Signal MicroElectronics

research interests My current research interests are in two main areas: Radio Frequency (RF) integrated circuits and analog-to-digital (ADC) converters. In the RF topic I am interested in transceiver designs for narrowband and Ultra Wide Band, and for the ADC topic I am interested on full-flash and Folding architectures. At circuit level I am interested in the building blocks of such circuits. On these topics I have supervised 2 Ph.D thesis and have three ongoing.

3 publications L. Oliveira, J. Fernandes, C. Verhoeven, I. Filanovsky, M. Medeiros Silva, "Analysis and Design of Quadrature Oscillators", Springer Science, 2008.

J. Fernandes, M.H.L. Kouwenhoven, C. van den Bos, L. Oliveira and C. Verhoeven, "The Effect of Mismatches and Delay on the Quadrature Error of a Cross-Coupled Relaxation Oscillator", IEEE Transactions on Circuits and Systems I, vol. 54, No. 12, pp. 2592-2598, December 2007.

M. Crepaldi, C. Li, K. Dronson, J. Fernandes, P. Kinget, “An Ultra-Low-Power Interference-Robust IR-UWB Transceiver Chipset Using Self-Synchronizing OOK Modulation”, IEEE International Solid-State Circuits Conference, pp. 226-227 February 2010.

R&D cooperation - Ongoing cooperation with TU Delft, the Netherlands, with the "Electronics Research Laboratory" in RF circuits since 2000. - Ongoing cooperation with "Universidade Federal de Santa Maria", Brazil, with the "Grupo de Microeletrônica (GMICRO)", since 2006. - Ongoing cooperation with "Universidade Nova de Lisboa", Portugal, with Uninova, since 2004. - Starting cooperation with Columbia University, New York, USA, with the "Analog & RF IC Design Research" group in UWB RF circuits. -Cooperation with Integration Portugal Lda, (Integration Associates Inc. California, USA) in RF and Analog circuits.

50

Marcelino Bicho dos Santos

position Assistant Professor (with Habilitation) Ph.D. 2001



url: http://web.ist.utl.pt/marcelino.santos/

keywords 1) Digital integrated circuits design and test: fault models, fault simulation, fault emulation in FPGAs, DFT, BIST, fault tolerant design 2) Design of integrated DC-DC converters.

research interests Mixed signal integrated circuits design: ultra low power circuits, linear voltage regulators, switched voltage regulators, voltage and current reference circuits, testability analysis and design for testability.

3 publications A. Monteiro, M. Santos, A. Neves, N. Dias, “Noise Minimization for Low Power Bandgap Reference and Low Dropout Regulator Cores”, Journal of Low Power Electronics, JOLPE, 5(2), pp. 206-222, American Scientific, September 2009.

N. Dias, M. Bicho dos Santos, A. Monteiro, A. Neves, “Gate Driver Voltage Optimization for Multi-Mode Low Power DC-DC Conversion”, Journal of Low Power Electronics, JOLPE, 5(2), pp. 241-254, Sept. 2009.

M. Santos, J. M. Dores Costa, J. Rocha, F. Lima, “Level Shifters and DCVSL for a Low Voltage CMOS 4.2V Buck Converter”, IEEE Transactions on Industrial Electronics, Volume 55, Issue 9, pp. 3315 – 3323, Sept. 2008.

R&D cooperation

51

Pedro Miguel Pinto Ramos

position Assistant Professor, (with Habilitation) Ph.D. 2001 IST, TU Lisbon

research unit IT



keywords Instrumentation and Measurement, Automated Measurement Systems, Data Acquisition Systems, Virtual Instrumentation, Least-Squares Fitting Algorithms, Measurement of Power Quality Disturbances, Impedance Measurements.

research interests The main research areas are: (i) Least-Squares Fitting of acquired data for the estimation of signal parameters which can be used in many fields of instrumentation and measurement, system identification and signal processing and includes sine-fitting, multi-harmonic fitting and ellipse fitting algorithms; (ii) Impedance Measurements with the development of simple techniques based on least-squares algorithms to accurately measure the impedance parameters using analog to digital converters and signal processing techniques; (iii) Measurement of Power Quality Disturbances with the development of new signal processing techniques for the efficient and correct detection and classification of power quality disturbance events. Together with these main areas and also common to them all, instrumentation and measurement basic research including uncertainty estimation, sensor development and implementation, application and development of automated measurement systems including data acquisition systems and virtual instrumentation are areas of research expertise.

3 publications T. Radil, P. M. Ramos, A. Cruz Serra, "New spectrum leakage correction algorithm for frequency estimation of power system signals", IEEE Transactions on Instrumentation and Measurement, Vol. 58, No. 5, pp. 1670-1679, 2009.

T. Radil, P. M. Ramos, F. M. Janeiro, A. Cruz Serra, "PQ monitoring system for real-time detection and classification of disturbances in a single-phase power system", IEEE Transactions on Instrumentation and Measurement, Vol. 57, No. 8, pp. 1725-1733, 2008.

P. M. Ramos, A. Cruz Serra, "A new sine-fitting algorithm for accurate amplitude and phase measurements in two channel acquisition systems", Measurement, Elsevier, Vol. 41, No. 2, pp. 135-143, 2008.

R&D cooperation

52

António Carlos de Campos Simões Baptista


research unit Cie3



keywords Laser, optical properties of semiconductors, hetero-structures, measurements.

research interests Nonlinear optical properties of semiconductors, opto-electronic semiconductor devices, lasers, laser and optical measurements.

3 publications A. Baptista, H. Abreu Santos, "Excitonic Eigenfunctions in a Fractional Dimensional Space", Materials Science and Engineering, Vol. B94, No. 11, 2001.

J. L. Azevedo, G. Neves, A. Baptista, H. Abreu Santos, "Wave Propagation Modes in Transferred Electron Devices", IEE Proc., Part I, Solid State and Electron Devices, Vol. 134, No. 2, 1987.

A. Baptista, H. Abreu Santos, "Calculation of Exciton Binding Energies in a Fractional Dimensional Space", Microelectronic Engineering, Microelectronic Engineering, Vol. 43-44, pp. 481-487, August 1998.

R&D cooperation

53

Carlos Azeredo Leme

position Assistant Professor Ph.D. 1999 ETH Zurich


contacts mail: [email protected] tel: 917204825


keywords analog mixed signal, CMOS design, Low-power, ADC, DAC, RF CMOS

research interests His scientific interests are in analog, mixed-signal and RF IC design, with focus in low-power and low-voltage analog front-ends using sigma-delta converters. Was Co-Founder and Chief Technical Officer at Chipidea Microelectronics where he was responsible for the creation and business of several product lines ranging from complete audio codecs and baseband front-ends for cellular, to RF tuners for mobile-TV, GPS and RF transceivers for UWB.

3 publications C. Azeredo Leme, E. Viegas and R. Reis, "Wide-band Sub-Sampling A/D Conversion with Image Rejection", chapter in “Circuits and Systems for Wireless Communications”, edited by M. Helfenstein and G. Moschytz, Kluver Academic Publishers, 1999.

K.P. Pun, J.E. Franca, C. Azeredo Leme and R. Reis, “Quadrature sampling schemes with improved image rejection,” IEEE Transactions on Circuits and Systems: Part II, vol. 50, no. 9, pp. 641-648, September, 2003.

K.P. Pun, J.E. Franca and C.A. Leme, Circuit Design for Wireless Communication: Improved Techniques for Image Rejection in Wideband Quadrature Receivers, 210 pgs. Boston, USA, Kluwer Academic Publishers, April 2003.

R&D cooperation SYNOPSYS (PT)

54

Fernando Manuel Duarte Gonçalves



contacts mail: [email protected]

tel: (+351) 213100350


keywords Reconfigurable systems, MicroElectronics

research interests His research interests include (1) the development of reconfigurable architectures for acceleration of logic simulation and (2) the design of ASICs for medical imaging systems. For more than ten years, his research interest was focused in VLSI testing, specially, design-for-testability techniques. Hence, he has a considerable expertise in this topic, which is extremely valuable in his current projects.

3 publications E. Albuquerque, P. Bento, C. Leong, F. Gonçalves, J. Nobre, J. Rego, P. Relvas, P. Lousã, P. Rodrigues, I. C. Teixeira, J. P. Teixeira, L. Silva, M. Medeiros Silva, A. Trindade, J. Varela, "The Clear-PEM Electronics System", IEEE Transactions on Nuclear Science, Vol. 53, No. 5, pp. 2704-2711, 2006.

P. Bento, F. Gonçalves, C. Leong, P. Lousã, J. Nobre, J. Rego, P. Relvas, P. Rodrigues, J. C. Silva, L. Silva, I. C. Teixeira, J. P. Teixeira, A. Trindade and J. Varela, "Performance Simulation Studies of the Clear-PEM DAQ/Trigger System", IEEE Transactions on Nuclear Science, Vol. 53, No. 4, pp. 2102-2111, August 2006.

M. C. Abreu, J. D. Aguiar, F. G. Almeida, P. Almeida, P. Bento, B. Carriço, M. Ferreira, N. C. Ferreira, F. Gonçalves, C. Leong, F. Lopes, P. Lousã, M. V. Martins, N. Matela, P. R. Mendes, R. Moura, J. Nobre, N. Oliveira, C. Ortigão, L. Peralta, R. Pereir

R&D cooperation

55

Gonçalo Nuno Gomes Tavares





keywords Statistical signal processing, Synchronization, Lower bounds

research interests His main research interests include system architecture for signal processing, statistical signal processing, spread-spectrum systems, synchronization issues in digital communication and algorithms for mobile channel simulation. He is also interested in the investigation of fundamental lower bounds on the MSE or variance of synchronization parameter estimates and its application in digital communications over mobile fading channels.

3 publications M. Piedade, J. Gerald, L. Sousa, G. Tavares, "Visual Cortical Neuroprosthesis: A System Approach, VLSI Circuits for Biomedical Applications", Artech House, 2008.

G. Tavares, "An Improved Feedforward Frequency Offset Estimator", IEEE Transactions on Signal Processing, Vol. 56, No. 5, 2008.

G.Tavares, "On the Statistics of the Sum of Squared Complex Gaussian Random Variables", IEEE Transactions on Communications, Vol. 55, No. 10, 2007.

R&D cooperation

56

João Manuel Torres Caldinhas Simões Vaz


research unit IT



keywords VCO, Power amplifier, CMOS, SiGe, spiral inductor, active inductor, non-linear, radio-frequency.

research interests Monolithic integrated LC voltage controlled oscillators (VCO) with differential and quadrature outputs. Quadrature VCOs/Mixers on 0.35um CMOS technology. Frequency synthesizers for frequencies up to 6GHz on CMOS technology. Power amplifiers for WLAN applications on 0.35um CMOS technology. Spiral inductors modeling and electromagnetic simulation on SiGe and CMOS technologies. Electric models were obtained up to 6GHz. Poly capacitors and resistors modeling. Electric models were obtained up to 6GHz. Grounded and floating active inductors for 5GHz on SiGe 0.35um process. These inductors will be used in active filters for wireless applications. Aspects concerning high frequency on-wafer measurements up to 6GHz with silicon substrates. The measurements included s-parameters, noise figure, output power and distortion, phase noise.

3 publications L. Mendes, E. J. Pires, J. C. Vaz, M. J. Rosário, P. B. Oliveira, J. A. Machado, "Automated Design of Microwave Discrete Tuning Differential Capacitance Circuits in Si Integrated Technologies", Microwave and Optical Technology Letters, Wiley, Vol. 52, No. 3, March 2010.

E. J. Pires, L. Mendes, P. B. Oliveira, J. A. Machado, J. C. Vaz, M. J. Rosário. "Design of Radio-Frequency Integrated CMOS Discrete Tuning Varactors Using the Particle Swarm Optimization Algorithm", Lecture Notes in Computer Science, Springer, No. 5518, pp. 1231-1239, June 2009.

L. Mendes, E. J. Pires, P. B. Oliveira, J. A. Machado, N. M. Ferreira, J. C. Vaz and M. J. Rosário. "Design Optimization of Radio Frequency Discrete Tuning Varactors", LNCS, Springer, no. 5484, pp. 343-352, April 2009.

R&D cooperation

57

José António Beltran Gerald




url: http://sips.inesc-id.pt/~jabg/

keywords Orthogonal Frequency Division Multiplexing (OFDM), Ultra-Wideband (UWB), Adaptive Filtering, Bioengineering.

research interests The author is interested and has been working in signal processing for telecommunications. More specifically, Ultra-Wideband (UWB) transceivers and Power Line communications (PLC) using OFDM. Transmission above 1 Mbps over the power lines require more complex OFDM schemes, as for instance, pre-coding, adaptive techniques, elaborated error correction codes, and so on. The adaptive OFDM is one of the author research interests presently. Also, the author keeps on working in bioengineering applications.

3 publications M. Piedade, J. Gerald, L. Sousa, G. Tavares, "Visual Cortical Neuroprosthesis: A System Approach", VLSI Circuits for Biomedical Applications, Artech House, 2008.

M. Piedade, J. Gerald, L. Sousa, G. Tavares, P. Tomás, "A Non Invasive System for Stimulating the Cortex", IEEE Transactions on Circuits and Systems, Vol. 52, No. 12, 2005.

N. Cesaltina, E. Ricardo, M. D. Ortigueira, J. A. Gerald, “New Quasi-Orthogonal BCH-Derived Sequences for CDMA Applications”, ETT - European Transactions on Telecommunications, Vol. 18, Issue 7, pp. 803-810, November 2007.

R&D cooperation

58

José João Henriques Teixeira de Sousa





keywords Reconfigurable Computing, Electronic Design Automation, Electronic Testing

research interests "Methods and techniques for rapid design, implementation and verification of complex hardware/software systems"

3 publications J. Sousa, P. Cheung, "Boundary-Scan Interconnect Diagnosis", Springer Netherlands, 2001.

J. Sousa, R. Zuim, C.N. Coelho, "Decision heuristic for Davis Putnam, Loveland and Logemann algorithm satisfiability solving based on cube subtraction", IET Computers & Digital Techniques, Vol. 2, No. 1, 2008.

A. Bhalla, J. Sousa, I. Lynce, J. Marques da Silva, "Heuristic-Based Backtracking Relaxation for Propositional Satisfiability", Journal of Automated Reasoning, Vol. 35, No. 1, 2005.

R&D cooperation

59

José Júlio Alves Paisana


research unit Cie3



keywords Semiconductor, thyristor, commutation, filamentation, finite- differences

research interests The fundamental research interests are concerning the modelling and numerical simulation of power semiconductor devices. I have used non-linear theory of systems and finite differences numerical methods applied to semiconductor equations to study the commutation process of p-n-p-n structures. Bifurcation and blow-up theories have also been fundamental tools to analyze the nature of the catastrophic electric ignition which can be present in the turn-on and turn-off processes.

3 publications H. Abreu Santos, J. A. Paisana "On the MC Simulation of ohmic contacts", Microelectronic Engineering, pp. 43-44, pp 507-512, 1998.

H. Abreu Santos, J. A. Paisana, "On the MC Simulation of ohmic contacts", Microelectronic Engineering, 43-44, pp. 507-512, 1998.

J. A. Paisana, "Piezoelectric Coupling to Electron Drift in Compound Semiconductors", Microelectronic Engineering, 51-52, pp. 249-256, May 2000.

R&D cooperation

60

Mª João Ramos M. Coelho Carrilho do Rosário


research unit IT


url: www.it.pt/person_detail_p.asp?ID=3

keywords RFIC, Modelling, Wireless communications, Mixers, Amplifiers, Oscillators

research interests The research interests are in the area of characterisation and modelling of active and passive electronic circuits and devices for wireless systems. Wireless communications transceiver architecture with special emphasis on achieving Tx/Rx architectures capable of circumventing the system impairments caused by the radio channel and its associated interface electronic blocks are also a topic of investigation. RF & Microwave active circuit analysis and design namely amplifiers, mixers and oscillators. All aspects of linear or nonlinear modelling, from functional description to parameter extraction, simulation algorithms and, finally, model validation are taken into account.

3 publications J. C. Freire, M. J.Rosario, Sistemas Electrónicos de Radio Frequência, 2002.

M.J. Rosario, "A Comprehensive Analysis of IMD Behavior in RF CMOS Power Amplifiers", IEEE Journal of Solid State Circuits, Vol. 39, No. 1, January 2004.

J. C. Freire, M. J. Rosario, J. Vaz, "Low Cost Si MMIC Design for RF Front Ends", Asia Pacific Microwave Conference, 2004.

R&D cooperation

61

Paulo Ferreira Godinho Flores




url: http://web.ist.utl.pt/marcelino.santos/

keywords Embedded Systems; Design, Test and Verification of Digital Systems; Optimization Models for Hardware/Software problems (mainly using SAT); Parallel Computing

research interests My main research is in the Electronic Design Automation area (EDA/CAD). I am researching on models and algorithms for several optimization problems in digital circuits, such as: testing, area, delay, architecture, etc. I am involved in the design of optimized Multiple Constant Multiplications, used in many signal processing applications, e.g. FIR/IIR filters, FFTs. The design and synthesis of digital circuits from hardware description languages such as VHDL, SystemC, or generic programing languages (C/C++, Java), for FPGA (Filed Programmable Gate Arrays) is another research area in which I have some interest. The distribution of power supply in digital circuits is becoming a major problem in circuit design due to the low voltages used. I am also researching and developing analysis tools for the power distribution in digital circuits. Another research area I pursuit is the parallel computation and its application to the computer aided design of electronic circuits. I am studying the implementation of some algorithms used in EDA in a GRID computation environment. This environment will take advantage of many networked Computers to model a powerful virtual computer that is able to distribute process execution across a parallel infrastructure.

3 publications L. Aksoy, E. Gunes, P. Flores, "Search algorithms for the multiple constant multiplications problem: Exact and approximate", Microprocessors and Microsystems, Embedded Hardware Design (MICPRO), Special issue on selected papers, Vol. 34, No. 5, pp. 151-162, 2009.

L. Aksoy, E. Costa, P. Flores, J. Monteiro, "Exact and approximate algorithms for the optimization of area and delay in multiple constant multiplications", IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems, Vol. 27, No. 6, pp. 1013-1026, 2008.

R&D cooperation

62

Pedro Rafael Bonifácio Vitor

position Ph.D.




keywords

research interests

3 publications P. R. B. Vitor, "Radiação Electromagnética dos Telemóveis – Recomendações Baseadas na Evidência", Revista Saúde e Bem Estar, Nº 109, pp. 120-123, May 2003.

K. W. Tam, P. Vitor, R. P. Martins, "MMIC active filter with tuned transversal element", IEEE Transactions on Circuits and Systems II: Analog and Digital Signal Processing, vol. 45, pp. 632-634, May 1998

K. W. Tam and P. Vitor, "Vehicle Alarm Positioning Based Upon Pager/UHF Communications and GPS Systems", Part V chapter contribution in Advances in Information Technologies: The business Challenge, IOS Press, November 1997

R&D cooperation

63

Teresa Maria Canavarro M. Mendes de Almeida





keywords Phase Locked Loops, Digital Signal Processing Techniques, Biosensor Modeling

research interests Analog and digital phase locked loops modeling, design and implementation. Formalism for analysis and synthesis of APLLs and DPLLs of any order and type. DPLL normalized linear models matching an implementation on a DSP. DPLL design based on an equivalent APLL or with some desired frequency response. High order DPLL design and implementation on a fixed point DSP. Digital signal processing techniques for system implementation on fixed point DSPs. Biosensor modeling for biomolecular recognition applications.

3 publications T. M. Almeida, M. Piedade, L. Sousa, J. Germano, P. Lopes, F. Cardoso, P. Freitas, On the Modeling of New Tunnel Junction Magnetoresisitive Biosensors, IEEE Transactions on Instrumentation and Measurement, vol.59, n.1, pp.92-100, January 2010.

T. M. Almeida, M. Piedade, From DPLL Design to its Implementation on a Fixed-Point DSP, European DSP Education & Research Symposium, pp.215-222, Texas Instruments, June 2008.

T. M. Almeida, M. Piedade, High performance analog and digital PLL design, IEEE International Symposium on Circuits and Systems, pp.394-397, vol.4., 1999.

R&D cooperation

64

Energy

65

João José Esteves Santana


research unit Cie3



keywords Power Electronics, Electrical Machines and Energy Economics

research interests Analysis and synthesis of electrical machines driven by power Electronics circuits. Economical problems of power systems: market versus regulation

3 publications M. J. Resende, P. Rocha, J. Alves da Silva, G. Marques, F. Pimenta, D. Mesquita e Sousa, S. Pinto, J. Santana, "Advanced Training Course in Power Quality: A Case Study," EAEEIE International Conference for Education in Electrical and Information Engineering, 2007.

D. Mesquita e Sousa, J. Alves da Silva, J. Santana, P. Sebastiao, E. Rommel, "Power Supply for a Fast Field Cycling NMR Spectrometer Using IGBTs Operating in the Active Zone", European Conference on Power Electronics and Applications, 1997.

R&D cooperation ERSE (PT), CP (PT), ML (PT)

66

Joaquim António Fraga Gonçalves Dente


research unit Cie3



keywords Electrical Machines, Electromechanical Actuators, Continuum electromechanics, Electrical energy

research interests The current research interests are on electromechanics namely continuum electromechanics in deformable media (magneto-rheological fluids), electromagnetic field applications using superconductor materials and command and control of electrical machines.

3 publications P. J. Costa Branco, J. A. Dente, "Derivation of a Continuum Model and Its Electric Equivalent-circuit Representation for Ionic Polymer–Metal Composite (IPMC) Electromechanics", Smart Matter. Struct., Vol.15, pp. 378-392, 2006.

J. F. Martins, J. A. Dente, A. J. Pires, R. Vilela Mendes, "Entropy Analysis on Electrical Drives Language Modeling", Intelligent Systems at the Service of Mankind, Vol. 2, Ubooks, 2006.

J. F. Martins, J. A. Dente, A. J. Pires, R. Vilela Mendes "Automatic Language Control of Electrical Drives. Background and Applications"; Intelligent Systems at the Service of Mankind, Vol. 1, Ubooks, 2004.

R&D cooperation CP (PT)

67

José António Marinho Brandão Faria


research unit IT


url: http://fenix.ist.utl.pt:443/homepage/ist11545

keywords Electromagnetics, Transmission Lines, Multiconductor Structures

research interests Among the various topics of research where I have been, or am, involved, the following deserve special reference: skin effect phenomena in nonhomogeneous cylindrical conductors; evaluation of electric and magnetic fields produced by high-voltage power lines; high-frequency transformer modeling; guided-wave propagation along multiconductor transmission-line systems; modal analysis; power-line communications; fiber optics.

3 publications J. B. Faria, Electromagnetic Foundations of Electrical Engineering,Wiley & Sons, 2008.

J. B. Faria, Multiconductor Transmission-Line Structures, John Wiley & Sons, 1993.

J. B. Faria, Óptica - Fundamentos e Aplicações, Editorial Presença, 1995.

R&D cooperation

https://fenix.ist.utl.pt/homepage/ist11545

68

José Pedro da Silva Sucena Paiva

position Full Professor Ph.D. 1972 Imperial College of Science and Technology, University of

London research unit Cie3


url: http://energia.ist.utl.pt/sucenapaiva

keywords Energy and Power Systems

research interests Power system analysis and control, Renewable energy and decentralised generation, Energy policy and management.

3 publications J.P. Sucena Paiva, "Electric Power Networks - a Systems Aproach", book, 800 pages, in Portuguese, IST Press, 2005.

J.P. Sucena Paiva, R. Hernandez, L.L. Freris, "Stability study of controlled rectifiers using a new discrete model", Proceedings of IEE , Vol 119, September 1972.

J.P. Sucena Paiva e L.L. Freris, "Stability of rectifiers with voltage - controlled oscillator firing systems", Proceedings of the IEE, Vol. 120, June, 1973.

R&D cooperation

69

Luís António Fialho Marcelino Ferreira

position Full Professor Ph.D. 1986 Georgia Institute of Technology, Atlanta, EUA

research unit Cie3


url: http://energia.ist.utl.pt/lmf

keywords Optimization applied to POWER and ENERGY systemsPlanning, management, and operation Transmission and distribution systems

research interests Our research interests cover the activities of planning, management and operation of generation, transmission and distribution systems in as much as those activities can be improved by specific optimization techniques. We have been dealing with strategic investment planning of power resources, medium-term and short-term resource scheduling, planning of wind resources, operation of hydro resources, planning of distribution network, and operation of distribution systems. We care for research of technologies which have great impact on industrial activities. We do also care for research fostering a better understanding of fundamental aspects of technology and leading not only to new procedures but also to new formulas and equations.

3 publications L.A.F.M. Ferreira, C.M.S.C. Jesus, "Local network power flow analysis: an accuracy level comparison for two sets of equations", IEEE Transactions on Power Systems, Vol. 21, No. 4, pp. 1616-1623, November 2006.

C.M.S.C. Jesus, L.A.F.M. Ferreira, "Complete adjoint-based incremental power flow equations", Electric Power Systems Research, Vol. 79, No. 7, pp. 1136-1144, July 2009

F S Reis, L A F M Ferreira, P M S Carvalho, "Reinforcement Scheduling Convergence in Power Systems Transmission Planning", IEEE Transactions on Power Systems, Vol. 20, No.2, May 2005.

R&D cooperation

70

José Fernando Alves da Silva


research unit Cie3


url: http://fenix.ist.utl.pt/homepage/ist11962/j-fernando-a-silva

keywords Switching converters; power processors; digital audio amplifiers; multilevel converters; Unity power factor rectifiers (UPFR); modelling simulation and control in power Electronics; power devices; sliding mode, fuzzy, fractional and predictive control.

research interests Power semiconductor devices. Switching converter modeling, simulation and control. New switching converter topologies for scientific, medical, measurement and audio applications (ultra low-ripple high-current generators, high-current kV pulse generators, digital audio amplifiers); Switching converters and control imbedding for clean power, energy conservation, power quality and renewable energy applications (UPFR, VAR compensators, passive and active power filters, UPFC, DVR, FACTS); Advanced control of power converters (sliding mode control, predictive control, fuzzy control, fractional control).

3 publications J. D. Barros, J. F. Silva, "Multilevel optimal predictive dynamic voltage restorer, special issue on multilevel converters", IEEE Transactions on Industrial Electronics, Vol. 57, No. 8, pp. 2747-2760, August 2010.

J. F. Silva, S. F. Pinto, “Advanced Control of Switching Power Converters”, capítulo 36, pp 1037-1114, in Power Electronics Handbook 3/e, Elsevier, 2011.

J. Monteiro, F. Silva, S. Pinto, "Matrix Converter Based Unified Power Flow Controllers: Advanced Direct Power Control Method", IEEE Transactions on Power Delivery, Vol. 26, No. 1, pp 420-430, January 2011.

R&D cooperation ML (PT), Centro de Física Nuclear da Universidade de Lisboa (PT), CERN (SW)

71

José Luís Costa Pinto de Sá

position Associate Professor (with Habilitation) Ph.D.

research unit Cie3



keywords

research interests Power Systems and Apparatus protective relaying Substations automation, real-time programming, Petri Nets and IEC 61850 standard application Human Safeness in electric Power environments Industrial power systems analysis and design

3 publications J. Pinto de Sá, R. Cartaxo, "Implementing Substations Automation Control Functions designed with Petri Nets on IEC 61850", IEEE Transactions on Power Delivery, 2010.

J. Pinto de Sá, M.Louro, "On human-life risk assessment and sensitive ground protection in MV Distribution Networks", IEEE Transactions on Power Delivery, 2010.

J. Pinto de Sá, J. Afonso, "A probabilistic apporach to setting distance relays in transmission networks", IEEE Transactions on Power Delivery, Vol. 12, No. 2, 1997.

R&D cooperation

72

José Manuel Dias Ferreira de Jesus


research unit Cie3



keywords Power Systems; Wind Turbine Generators; Fuel Cells; Transients in Power Systems

research interests Impact on the Electrical Transmission and Distribution Systems of the decentralized power generation

3 publications P. Flores, J. Ferreira de Jesus, "Simulation of Correlated Wind Speed and Power Variates in Wind Parks", Electric Power Systems Research, May 2010.

J. Ferreira de Jesus, M.E. Almeida, C. S. Rocha, J.P. Sucena Paiva, "Integration of a Nuclear Power Plant in a Transmission Grid with a Large Penetration of Wind Generation", IFAC Conference on Control Methodologies and Technology for Energy Efficiency, March 2010.

J.P. Sucena Paiva, J. Ferreira de Jesus, R. Castro, P. Correia, J. Ricardo, A. Reis Rodrigues, J. Moreira, B. Nunes, "Transient stability study of the Portuguese transmission network with a high share of wind power", Undécimo Encuentro Regional Iberoameri

R&D cooperation

73

Mª Teresa N. P. de Castro Correia de Barros



contacts mail: [email protected]

tel: (+351) 218417697


keywords Corona, Electromagnetic Transients, Power Quality

research interests Modeling of power systems components, including non-uniform and/or non-linear behaviours of transmission lines, poles and ground electrodes. Wave propagation on transmission lines illuminated by external electromagnetic fields. Computation and analysis of Electromagnetic Transients. Lightning, lightning performance and lightning protection. Power Quality evaluation.

3 publications M. T. Correia de Barros, M. E. Almeida, Computation of Electromagnetic Transients on Nonuniform Transmission Lines, Computer Analysis of Electric Power System Transients - Selected Readings, IEEE Press, 1997

A. Leiria, P. Nunes, A. Morched, M. T.Correia de Barros, "Induction motor response to voltage dips", Electric Power Systems Research, (76) 2006.

M. E. Almeida, M. T. Correia de Barros, "Inclusion of Skin Effect in a Finite-Differences Transmission Line Model", WSEAS Transactions on Circuits and Systems, Vol. 4, No. 8, 2005.

R&D cooperation

74

Vitor Manuel de Oliveira Maló Machado





keywords Electromagnetic field, eddy currents, computation methods, finite element method, boundary element method, hybrid methods.

research interests The main research area has been the Electromagnetic Field Computation for Electrical Engineering Devices. In this area, work has been done in the development of analytical and numerical methods, namely of the finite element method (FEM). In particular, quasi-static magnetic field problems in the presence of eddy currents have been considered in the frequency domain or, for non-linear problems, in the time domain. For open boundary field problems, hybrid methods have been developed by combining the FEM with the boundary element method (BEM). Magnetic field problems in the presence of ferromagnetic media have been also taken into account where saturation and hysteresis effects are treated to be included in electromagnetic computation programs. The described techniques may be used to analyse a wide range of electrical engineering devices such as transformers, electric machines, transmission lines, microwave and optical wave-guides or integrated circuits.

3 publications V. Malo Machado, "Métodos Numéricos de Resolução das Equações do Campo Electromagnético", author edition, 1992.

V. Maló Machado, "FEM/BEM Hybrid Method for Magnetic Field Evaluation Due to Underground Power Cables", IEEE Transactions on Magnetics, Vol. 46, No. 8, August 2010.

X. Lopez-Fernandez, C. Alvarez-Mariño, V. Maló Machado, "Computation Method for Transients in Underground Cables with Lossy Earth Return Path", IEEE Transactions on Magnetics, Vol. 46, No. 8, August 2010.

R&D cooperation

75

Gil Domingos Marques


research unit Cie3



keywords Electrical machines, static power conversion, adjustable speed drive and generator systems, harmonic compensation systems and distribution systems.

research interests His research interests include electrical machines, static power conversion, variable-speed drive and generator systems, harmonic compensation systems and distribution systems.

3 publications G. Marques, "Virtual-Flux-Based Direct Power Control of Three-Phase PWM Rectifiers", IEEE Transactions on Industry Applications, Vol. 37, No. 4, 2001.

G. Marques, "An Instantaneous Active and Reactive Current Component Method for Active Filters", IEEE Transactions on Power Electronics, Vol. 15, No. 4, 2000.

G. Marques, "Four Wire Current Regulated PWM Voltage Converter", IEEE Transactions on Industrial electronics, Vol. 45, No. 5, 1998.

R&D cooperation LABELEC (PT)

76

Paulo José da Costa Branco


research unit Cie3


url: http://pbranco.ist.utl.pt

keywords Electromechanical Actuators, Continuum electromechanics, Smart materials, Ionic polymer-metal composites (IPMCs), Electroactive fluids

research interests The current research interests are on continuum electromechanics (the interaction of fields with fluids and other deformable media) for advanced actuators/sensors based on smart materials as piezoelectric, ionic polymers-metal composites, and magneto-rheological fluids. Research on application of superconductors in energy systems for fault-current limiters and transportation vehicles, and also energy conversion in fuel cells are also my current research.

3 publications P.J. Costa Branco, M.E. Almeida, J.A. Dente, "Proposal for an RMS thermoelectric model for a resistive-type superconducting fault current limiter (SFCL)", Electric Power Systems Research, Vol. 80, No. 10, pp. 1229-1239, October 2010.

E. Costa, P.J. Costa Branco, "Continuum electromechanics of a magnetorheological damper including the friction force effects between the MR fluid and device walls: Analytical modelling and experimental validation", Sensors and Actuators A: Physical, Vol. 155, No. 1, pp. 82-88, October 2009.

J. Barramba, J. Silva, P.J. Costa Branco, "Evaluation of dielectric gel coating for encapsulation of ionic polymer-metal composite (IPMC) actuators", Sensors and Actuators A: Physical, Vol. 140, No. 2, pp. 232-238, November 2007.

R&D cooperation

77

Pedro Manuel Santos de Carvalho


research unit Cie3



keywords Optimization, Planning of distribution systems, Analysis and operations of power systems, Smart grids, Power systems reliability and risk assessment

research interests Power systems planning, operation and analysis. Robust optimization algorithms and advanced computer applications for large-scale distribution networks. Risk assessment, design for reliability, and power quality. Embedded generation and smart grids.

3 publications P. Carvalho, L. Marcelino Ferreira, L. Barruncho, "Optimal Distribution Network Expansion Planning Under Uncertainty by Evolutionary Decision Convergence", International Journal of Electrical Power and Energy Systems, Vol. 20, No. 2, 1998.

P. Carvalho, L.Marcelino Ferreira, L. Barruncho, "On Spanning-Tree Recombination in Evolutionary Large-Scale Network Problems: Application to Electrical Distribution Planning", IEEE Transactions on Evolutionary Computation, Vol. 5, No. 6, 2001.

L. Xie, P. M. S. Carvalho, L.A.F.M. Ferreira, B. H. Krogh, M. D. Ilic, “Wind Integration in Power Systems: Operational Challenges and Possible Solutions”, Proceedings of the IEEE, Vol. 99, No.1, 2011.

R&D cooperation EDP Distribuição (P), Carnegie Mellon University (USA)

78

Célia Maria Santos Cardoso de Jesus


research unit Cie3


url: https://fenix.ist.utl.pt/homepage/ist12937

keywords power system analysis, transmission and distribution networks

research interests I have been doing research in the field of power system analysis, with special emphasis on network analysis. Network analysis is becoming increasingly important as the transmission and distribution networks become more vulnerable to a new kind of demands. With the increasing penetration of renewable resources into distribution and transmission networks together with an increase in the demand for power reliability, the networks need to be better planned and better operated. The planning and operations became more computer dependent, as a result of an additional availability of observation data. In fact the optimization and control, so necessary for planning and operation, require a fast reliable analysis module. Power Flow Equations based on Tellegen’s Theorem when used in a reduced local model are a new and appropriate solution in this context.

3 publications C. Jesus, Loss Sensitivity Formulas by Adjoint Networks, Electric Power Systems Research, 2010.

C. Jesus, L. M. Ferreira, "Complete adjoint-based incremental power flow equations", Electric Power Systems Research, Vol. 79, No. 7, 2009.

C. Jesus, "Power System Voltage Sensitivities by Adjoint Networks", WSEAS Transactions on Circuits and Systems, Vol. 5, No. 2, 2006.

R&D cooperation Fundação para a Ciência e Tecnologia (PT)

79

Duarte de Mesquita e Sousa


research unit Cie3



keywords Electrical Drives, Power Electronics, Fast Field Cycling Nuclear Magnetic Resonance (FFC NMR)

research interests Development of power supplies and magnets to specific applications: i) NMR – FFC relaxometet, designing FFC magnets based on superconducting materials and using computational optimization techniques; and, implementing power supplies fulfilling the FFC NMR requirements; ii) Electrical systems to the Transports domain: development of hybrid energy storage solutions and electric drive trains of electric vehicles (based on the usage of ultracapacitors and high capacity batteries).

3 publications D. M. Sousa, G. Marques, J. M. Cascais, P. J. Sebastião, "Desktop fast-field cycling nuclear magnetic resonance relaxometer", Solid State Nuclear Magnetic Resonance, Vol. 38, No. 1, pp. 36-43, July 2010.

G. D. Marques, V. Fernão Pires, S. Sousa, D. M. Sousa, “A DFIG Sensorless Rotor-Position Detector Based on a Hysteresis Controller”, IEEE Transactions on Energy Conversion, Vol. 26, No. 1, pp. 9-16, March 2011.

C. Sena, M.H. Godinho, P.J. Sebastião, D. Sousa, A.M. Figueiredo Neto, “Free-standing urethane/urea elastomer films undoped and doped with ferro-nano-particles”, European Physical Journal, Vol. 34, 2011.

R&D cooperation

80

Manuel Ventura Guerreiro das Neves


research unit Cie3



keywords

research interests Optical fibers, Solitons, Power lines, Electromagnetic transients

3 publications J. B. Faria, M. Guerreiro das Neves, "Nonuniform three-phase power lines: Resonance effects due to conductor transposition", International Journal of Electric Power & Energy Systems, Vol. 26, No. 2, 2004

J. B. Faria, M. Guerreiro das Neves, "Analysis of the helical twisted-wire pair running above ground: Transfer function evaluation", IEEE Transactions on Electromagnetic Compatibility, Vol. 45, No. 2, 2003.

J. B. Faria, M. Guerreiro das Neves, "Accurate evaluation of indoor triplex cable capacitances taking conductor proximity effects into account", IEEE Transactions on Power Delivery, Vol. 21, No. 3, 2006.

R&D cooperation

81

Mª Eduarda de Sampaio Pinto de Almeida Pedro


research unit Cie3



keywords Electromagnetic Transients, Superconducting Fault Current Limiter

research interests Transmission line, transmission tower and tower footing modelling; Lightning performance of power transmission and distribution lines; Superconducting Fault Current Limiter

3 publications J. Faria, M. E. Almeida, "Accurate calculation of magnetic-field intensity due to overhead power lines with or without mitigation loops with or without capacitor compensation", IEEE Transactions on Power Delivery, Vol. 22, No. 2, 2007.

M. T. Correia de Barros, M. E.Almeida, L. Dubé, B. Stein, "A general-purpose transmission line model and its interface with an electromagnetic transients programme", International Journal of Electrical Power and Energy Systems, Vol. 19, No. 14, 1997.

M. T. Correia de Barros, M. E. Almeida, "Computation of Electromagnetic Transients on Nonuniform Transmission Line", IEEE Transactions on Power Delivery, Vol. 11, No. 2, 1996.

R&D cooperation Empresa de Electricidade da Madeira (P), Redes Energéticas Nacionais (REN)

82

Mª José Ferreira dos Santos Lopes de Resende


research unit Cie3



keywords Thermal Ageing of Distribution Transformers; Power Quality; e-Learning Tools for Electrical Engineering

research interests Main factors constraining transformers’ thermal loss of life are load and ambient temperature profiles they experience. Provided a suitable transformer thermal model and a loss of life one are chosen, it is possible, from a theoretical point of view, to determined its on-line expected loss of life. However, due to the random character of constrains, such a purely deterministic approach will lead to reduced reliability results. The physical characteristics of the real profiles that transformers are subjected to (deterministic and random), and the uncertainty associated to transformer's specific parameters used in its thermal model, require a probabilistic approach for the study of expected loss of life. The electric engineering is a difficult discipline both to learn and teach. It requires from the students, a higher level of abstraction than in other disciplines. The appearance of communication and information technologies (TIC) allows de development of teaching tools which objective is to improve de efficiency of the learning process.

3 publications M. J. Resende, P. Rocha, F. Silva, G. Marques, F. Pimenta, D. Mesquita, S. Pinto, J. Santana, "Advanced Training Course in Power Quality; A Case Study", 18th EAEEIE Conference, Praha, July 2007.

M. J. Resende, L. Pierrat, J, Santana, "The Transformer Thermal Loss of Life: Part 1 - Improved Deterministic Approach for Thermal and Ageing Models", ETEP, Vol. 13, July/August 2003.

M. J. Resende, L. Pierrat, J. Santana, "The Transformer Thermal Loss of Life: Part 2 - Influence of Functional and Structural Parameters' Variability. A Probabilistic Approach", accepted for publication on the ETEP.

R&D cooperation

83

Pedro Alexandre Flores Correia

position Assistant Professor Ph.D. 2002 University of Illinois at Urbana-Champaign

research unit Cie3


url: http://enerpc.ist.utl.pt/

keywords Power System Analysis and Economics; Power System Investment Planning; Electricity Markets; Risk Assessment in Power Systems; Renewable and Distributed Generation; Protective Relaying.

research interests My most recent research activity has been on vector autoregressive (VAR) models applied to the generation of synthetic wind speed and power time-series in wind parks. I have also worked on the practical problems of waveform reconstruction in current and voltage transformers for protection relaying applications. The interest in liberalized electricity markets, on market operation and competition, and on investment planning in a market context, is still very much alive. A large set of tools has found application in my work, namely power system analysis and economics, optimization, game theory, stochastic analysis, financial theory, numerical analysis, and signal processing.

3 publications P. F. Correia, J. M. Ferreira de Jesus, “Simulation of correlated wind speed and power variates in wind parks”, Electric Power Systems Research, Vol. 80, No. 5, pp. 592-598, May 2010.

R. C. Garcia, J. Contreras, P. F. Correia, J. I. Muñoz, “Transmission assets investment timing using net present value curves”, Energy Policy, vol. 38, no. 1, pp. 598-605, January 2010.

P. F. Correia, P. M. S. Carvalho, L. A. F. M. Ferreira, J. Guedes, J. Sousa, “Power plant multistage investment under market uncertainty”, IET Generation, Transmission & Distribution, vol. 2, no. 1, pp. 149-157, January 2008.

R&D cooperation EDP (PT), Efacec (PT), ENE-Angola (AO)

Universidade Católica Portuguesa (PT), Universidad de Castilla-La Mancha (SP)

84

Rui Manuel Gameiro de Castro


research unit Cie3


url: http://energia.ist.utl.pt/ruicastro

keywords Renewable energy, transient stability, FACTS

research interests Renewable energy, concentrated solar power, off-shore wind power, wind predictability, power systems analysis, energy storage systems, FACTS, energy economics.

3 publications J. Jesus, R. Castro, J.M. Ferreira de Jesus, “HVDC Connection of Offshore Wind Parks: VSC vs LCC with STATCOM”, International Conference on Power Systems Transients, June 2011.

A. Coelho, R. Castro, “Modeling and Validation of PV Power Output With Solar Tracking”, IEEE International Conference on Power Engineering Energy and Electrical Drives, May 2011.

S. Faias, J. Sousa, R. Castro, “Environmental Dispatch of the Portuguese Power System for CO2 Emissions Reduction”, 8th International Conference on the European Energy Market, May 2011.

R&D cooperation

85

Sónia Maria Nunes dos Santos Paulo Ferreira Pinto


research unit Cie3



keywords Power electronic converters, modelling, simulation, applications in power quality and renewable energy sources, matrix converters, sparse matrix converters, space vector modulation, sliding mode and predictive control.

research interests Power electronic converters; converters modeling and simulation; new converter topologies for clean power and renewable energy sources; matrix converters and sparse matrix converters applications (FACTS, UPFC, VAR compensators); advanced control of power converters (sliding mode, predictive control); integrated control for power quality, energy conservation and renewable energy sources.

3 publications M. Chaves, E. Margato, J. Silva, S. Pinto, "A New Approach in Back-to-Back m Level Diode-Clamped Multilevel Converter Modeling and DC Bus Voltages Balancing", IET Power Electronics, Vol. 3, No 4, pp. 578-589, 2010.

S. Pinto, J. Alves da Silva, "Sliding Mode Direct Control of Matrix Converters", IET - Electric Power Applications, Vol. 1, No. 3, pp. 439-448, 2007.

J. Silva, S. Pinto, Control Methods for Switching Converters, Power Electronics Handbook, Chapter 42, Elsevier, 2006.

R&D cooperation

86

Systems, Decision and Control

87

João José dos Santos Sentieiro


research unit President of Foundation for Science and Technology (FCT) and Vice-President of European Science Foundation (ESF).


url: http://welcome.isr.ist.utl.pt/people/index.asp?accao=showpeople&id_people=2

keywords

research interests

3 publications

R&D cooperation

88

João Manuel Lage de Miranda Lemos

position Full Professor

Ph.D. 1989 IST, TU Lisbon



url: http://ramses.inesc.pt/People/jlml

keywords Computer control, adaptive control, predictive control, multiple model switching control, control applications, control of anesthesia, control of plants with transport phenomena, control of solar thermal plants, control of water delivery canals, decentralized control.

research interests The research interests are concerned with control of uncertain systems. For this sake, tools from adaptive control are used, with emphasis on the use of methods combining adaptation and predictive control, switched multiple model control and adaptation based on Lyapunov functions. Applications range from "technical systems" such as thermoelectric power systems and water distribution systems (either in canals or pipes) to biomedical applications, including the control of anesthesia and HIV-1 infection. Decentralized control is another major area of interest that expands the previous ones.

3 publications B.Costa, J. Miranda Lemos, An adaptive temperature control law for a solar furnace, Control Engineering Pratice -Elsevier, Vol. 17, No. 10, pp. 1157-1173, 2009.

T. Mendonça, J. Miranda Lemos, H. Magalhães, P. Rocha, S. Esteves, Drug delivery for neuromuscular blockade with supervised multimodel adaptive control, IEEE Transactions on Control Systems Technology, Vol. 17 No. 6, pp. 1097-1103, 2009.

C. S. Nunes, T. Mendonça, J.Miranda Lemos, P. Amorim, Feedforward adaptive control of the Bispectral Index of the EEG using the intravenuous anaesthestic drug propofol, International Journal of Adaptive Control and Signal Processing, Vol. 23, No. 5, pp. 4

R&D cooperation

89

José Alberto Rosado dos Santos Victor


research unit ISR


url: www.isr.ist.utl.pt/~jasv

keywords Computer and Robot Vision, Vision based control and navigation, biological inspired computer vision.

research interests My main research interests are in computer vision and in vision based robotics. I have performed research in the areas of 3D reconstruction from images or on the estimation of the camera motion from the observation of a video sequence. In other cases, I have looked at the problem tracking moving objects with a single or multiple cameras. Recently, this work was complemented with learning or cognitive aspects. For example, we have built a video surveillance system that is able to characterize and recognize human activities. Vision is the main perceptual cue for many biological systems. Similarly, robots may rely extensively on the use of vision to perceive their surrounding spaces. I have worked on vision-based navigation of robots and this was applied to land, underwater and aerial robots. We have also designed special cameras (e.g. omnidirectional) inspired after the variety of eye geometries that we can find in nature. For the past 5 years we started working, together with groups in biology, psychology and neuroscience, in the area of humanoid robotics. We have built several prototypes and used them to study visual perception, learning or sensory-motor coordination.

3 publications J. Gaspar, N. Winters, J. Santos-Victor, "Vision-based navigation and environmental representations with an omnidirectional camera", IEEE Transactions on Robotics and automation, Vol 16, No. 6, December 2000.

C. Silva, J. Santos-Victor, "Motion from Occlusions", Robotics and Autonomous Systems, Elsevier, Vol. 5, No. 3-4, June 2001.

S. van der Zwaan, A. Bernardino, J. Santos-Victor, "Visual station keeping for floating robots in unstructured environments", Robotics and Autonomous Systems (Elsevier), Vol. 39, No. 3-4, June 2002.

R&D cooperation

90

Luís Henrique Martins Borges de Almeida

position Full Professor Ph.D. 1983

research unit IT



keywords Signal Processing, Machine Learning, Source Separation, Independent Component Analysis, Information-Theoretic Learning

research interests My long-term research interests are the development of methods to learn the structure of data in an unsupervised or lightly supervised way, and nonlinear signal processing. The two are strongly related, because most of the data that we deal with can be seen as signals, and the most interesting processing methods, including learning the data structure, are nonlinear. More specifically, I'm currently involved in methods to develop nonlinear processing systems according to information-theoretic criteria such as mutual information and entropy. I'm also pursuing my recent work on nonlinear source separation. Again, the two are related to each other. Another long-standing interest has been time-frequency and fractional Fourier analysis of signals. Although I haven't published anything in this area for several years, I keep some ideas in my mind, and they may produce interesting results sometime...

3 publications L. B. Almeida, Nonlinear Source Separation, Synthesis Lectures on Signal Processing, Morgan and Claypool Publishers, 2006.

L. B. Almeida, "Separating a Real-Life Nonlinear Image Mixture", Journal of Machine Learning Research, Vol. 6, pp. 1199-1232, 2005.

L. B. Almeida, "Linear and Nonlinear ICA Based on Mutual Information – The MISEP Method", Signal Processing, Vol. 84, No. 2, pp. 231-245, February 2004.

R&D cooperation

91

Maria Isabel Lobato de Faria Ribeiro


research unit ISR



keywords Robotics, Mobile Robotics, Cooperative Robotics,

research interests Research interests include indoor and outdoor land mobile robot navigation, cooperative robotics, cooperative perception and navigation, control of multi-vehicle systems, mapping, world model representation.

3 publications I. Ribeiro, C. Damiani, A. Tesini, S. Kakudate, M. Siuko, C. Neri, “The Remote Handling Systems in ITER”, Fusion Engineering and Design, Elsevier, in press, March 2011.

F. Valente, A. Vale, D. Fonte, I. Ribeiro, “Optimized Trajectories of the Transfer Cask System in ITER”, Fusion Engineering and Design, Elsevier , in press, Dezembro 2010.

F. Melo, I. Ribeiro, “Coordinated Learning in multiagent MDPs with Infinite State-Space, Autonomous Agents and Multiagent Systems, Vol. 21, No. 3, pp.321-367, November 2010.

R&D cooperation

92

Jorge dos Santos Salvador Marques


research unit ISR


url: www.isr.ist.utl.pt/~jsm

keywords Image processing, pattern recognition and medical image analysis.

research interests My research interests are in the areas of image processing and pattern recognition. I am interested the development of methods for data modeling and information retrieval. I have been involved in a number of problems: video surveillance, shape extraction using deformable models, object tracking in video sequences, human activity recognition, medical applications, volume reconstruction from 2D data under severe degradation of the images, automatic classification of skin lesions, detection of dunes and craters in Mars images.

3 publications J. M. Sanches, J. C. Nascimento, J. S. Marques, Medical Image Noise Reduction using the Sylvester-Lyapunov Equation, IEEE Transactions on Image Processing, vol. 17, pp. 1522-1539, September 2008.

J. Nascimento, J. S. Marques, Robust Shape Tracking in the Presence of Cluttered Background, IEEE Transactions on Multimedia, Vol. 6, no. 6, December 2004.

J. C. Nascimento, M. A. T. Figueiredo, J. S. Marques, "Trajectory Classification Using Switched Dynamical Hidden Markov Models", IEEE Transactions on Image Processing, Vol. 19, No. 5, pp. 1338-1348, 2010.

R&D cooperation Computer Vision Center, Barcelona (SP), Universidade do Porto (PT), Hospital Pedro Hispano (PT)

93

Pedro Manuel Urbano de Almeida Lima

position Associate Professor (with Habilitation) Ph.D. 1994 Rensselaer Polytechnic Institute, Troy, NY, USA

research unit ISR


url: http://users.isr.ist.utl.pt/~pal

keywords Multi-Robot Systems, Planning Under Uncertainty, Discrete-Event Systems, Cooperative Perception, Formation Control

research interests I am generically interested in multi-robot systems, especially on bringing together Systems and Control and Artificial Intelligence concepts with the purpose of planning and executing multi-robot tasks under uncertainty in the actions effects and state observations. In particular, I am looking at discrete-event-based models of robotic tasks, and how to fine tune them using reinforcement learning algorithms (related to MDPs and POMDPs). One related subject is the cooperation between several static and mobile sensors (networked robot systems) to improve the perception of relevant objects and events, using sensor fusion techniques and Bayesian inference.

3 publications V. A. Ziparo, L. Iocchi, Pedro Lima, D. Nardi, P. F. Palamara, "Petri Net Plans: A Framework for Collaboration and Coordination in Multi-Robot Systems", accepted for publication in Journal of Autonomous Agents and Multi-Agent Systems, 2010.

D. Milutinovic, P. Lima, "Modeling and Optimal Centralized Control of a Large-Size Robotic Population", IEEE Transactions on Robotics, Vol. 22, No. 6, 2006.

P. Tabuada, G. Pappas, P. Lima, "Motion Feasibility of Multi-Agent Formations", IEEE Transactions on Robotics, Vol. 21, No. 3, 2005.

R&D cooperation IdMind (PT), UAVision (PT), Critical Software (PT)

94

António Manuel dos Santos Pascoal

position Associate Professor Ph.D. 1987 University of Minnesota, MPLS, MN, USA

research unit ISR

contacts mail: [email protected] tel: (+351) 218418051/081


keywords Control Theory, Navigation, Guidance and Control of Autonomous Vehicles, Cooperative Navigation and Motion Control of Multiple Marine Vehicles for Scientific Applications.

research interests Over the past years, he has participated actively in the design, development, and operation of prototype marine robots, including autonomous surface craft and underwater vehicles. He has coordinated several European projects aimed at bridging the gap between marine science and technology. His research interests include linear and nonlinear robust control theory, integrated design of navigation, guidance and control systems, combined plant/controller optimization, and coordination motion control of multiple vehicles with applications to the operation of air and marine robots. His long term goal is to contribute to the development of advanced tools for ocean exploration and exploitation. He is also interested in the history of science, animal navigation and locomotion, and the application of marine robots to underwater archaeology.

3 publications I. Kaminer, A. Pascoal, E. Xargay, N. Hovakimyan, C. Cao, V. Dobrokhodov, "Path Following for Unmanned Aerial Vehicles using L1 Adaptive Augmentation of Commercial Autopilots", Journal of Guidance, Control, and Dynamics, Vol. 33, No. 2, pp. 550-565, March-April 2010.

R. Ghabcheloo, A. P. Aguiar, A. Pascoal, C. Silvestre, I. Kaminer, J. Hespanha, "Coordinated path-following in the presence of communication losses and time delays", SIAM - Journal on Control and Optimization, Vol. 48, No. 1, pp. 234-265, 2009.

C. Silvestre, R. Cunha, N. Paulino, A. Pascoal,"A Bottom Following Preview Controller for Autonomous Underwater Vehicles", IEEE Transaction on Control Systems Technology, Vol. 17, No. 2, pp. 257 - 266, March 2009.

R&D cooperation RINAVE (PT), IFREMER (FR), ATLAS (GER), SEEBYTE (UK), System Technologies (UK)

95

Carlos Jorge Ferreira Silvestre


research unit ISR


url: www.isr.ist.utl.pt/~cjs

keywords Guidance and Control of Autonomous Vehicles, Linear Control, Nonlinear Control, Discrete Event Systems, Mission Control Systems.

research interests Carlos Silvestre has conducting research in the past years on the subjects of vehicle and mission control of air and underwater robots. His research interests include linear and nonlinear control theory, coordinated control of multiple vehicles, gain scheduled control, integrated design of guidance and control systems, inertial navigation systems, and mission control and real time architectures for complex autonomous systems with applications to unmanned air and underwater vehicles. Currently particular emphasis is placed in the following topics: -Sensor based control for autonomous vehicles: Develop control laws that can react directly to sensor data in real time. The envisioned control strategies will consist of converting the motion control problem into that of driving to zero a generalized error, defined in a suitable sensor set error space. –Trajectory tracking and path following controllers for extended flight envelope maneuvers: Study control strategies that can drive autonomous vehicles along arbitrary trajectories and paths. The theoretical tools required to address these problems borrow from nonlinear and hybrid control system theory.

3 publications A. Pascoal, P. Oliveira, C. Silvestre, A. Bjerrum, A. Ishoy, J-P. Pignon, G. Ayela, C. Petzelt, "MARIUS: An Autonomous Underwater Vehicle for Coastal Oceanography", IEEE Robotics & Automation Magazine, Vol. 4, No. 4, 1997.

P. Batista, C. Silvestre, P. Oliveira, "Position and Velocity Navigation Systems for Unmmaned Vehicles", IEEE Transactions on Control Systems Technology, Vol. 17, No. 3, 2009.

P. Batista, C. Silvestre, P. Oliveira, "A Sensor Based Controller for Homing of Underactuated AUVs", IEEE Transactions on Robotics, Vol. 25, No. 3, 2009.

R&D cooperation

96

Isabel Maria Gonçalves Lourtie


research unit ISR



keywords

research interests Statistical signal processing. Time-frequency analysis. Time delay estimation. Detection and Classification

3 publications J. Buescu, F. Garcia, I. Lourtie, "Positive-Definiteness, Integral Equations and Fourier Transforms", Journal of Integral Equations & Applications, Vol. 16, No. 1, 2004.

F. Garcia, I. Lourtie, "Detection of Transient Signals with Unknown Localization", IEEE Signal Processing Letters, Vol. 11, No. 9, 2004.

F. Garcia, I. Lourtie, J. Buescu, "L2(R) Nonstationary Processes and the Sampling Theorem", IEEE Signal Processing Letter, Vol. 8, No. 4, 2001.

R&D cooperation

97

João Paulo Salgado Arriscado Costeira


research unit ISR



keywords Image Processing, Computer Vision, 3D Reconstruction, Object Matching & Recognition

research interests My scientific interests are in the area of Image Understanding with a special "pleasure" for 3D reconstruction from video. In the past few years I centered my activities in developing efficient algorithms and representations for point correspondence and structure-from-motion. I'm interested in object recognition and localization applications. I have been involved in several projects in the area of robotics, image/information retrieval and indexing. Quite often these problems lead to large-scale combinatorial optimization problems, therefore I have developed strong collaborations with the mathematics and signal processing community. This work lead to fundamental results in "data association" mecanisms over linear subspaces. Hinging on these results I'm interested in tackling recognition/matching problems in very large sets of distributed image databases having in mind applications in mobile sensing, quality of life technology and robotics in general.

3 publications J. Maciel, J.P. Costeira, A Global Solution to Sparse Correspondence Problems, IEEE Transactions on Pattern Analysis and Machine Intelligence, Vol. 25, No. 2, 2003.

M. Marques, J. P. Costeira, Estimating 3D shape from degenerate sequences with missing data, Computer Vision and Image Understanding, Vol. 113, No. 2, pp. 261-272, 2009.

J.P. Costeira, T. Kanade, A Multibody Factorization Method for Independent Moving Objects, International Journal on Computer Vision, Vol. 29, No. 3, 1998.

R&D cooperation

98

Eduardo José Ramos Morgado

position Assistant Professor (with Habilitation) Ph.D. 1989 New University of Lisbon



url: http://web.ist.utl.pt/emorgado/

keywords Semiconductor materials and devices, thin films, optical properties, electrical properties, optoElectronics, photovoltaics

research interests Current research is in the area of Thin Film Semiconductors and devices for Photovoltaics and OptoElectronics. Relations between the electronic density of states and the opto-electrical properties of amorphous/microcrystalline semiconductors are investigated, via experimental characterisation and modelling. Recombination models for amorphous semiconductors have been developed. A particular research topic is the light- and radiation-induced degradation of hydrogenated amorphous Silicon and other thin film materials, a phenomenon that limits device performance. Several characterisation techniques have been implemented and are available for the study of defect states, majority- and minority-carrier transport and recombination, in amorphous/microcrystalline, organic/inorganic, semiconductors and devices, including Photothermal Deflection Spectroscopy (PDS), Constant Photocurrent Method (CPM), Steady State Photocarrier Grating (SSPG), Spectral Photocurrent (SPC).

3 publications U. Mardolcar, C. Casteleiro, R. Schwarz, A. Maçarico, J. Martins, M. Vieira, P. Stallinga, H. L. Gomes, E. Morgado, F. Wuensch, M. Kunst, "Spatially-resolved photocapacitance measurements to study defects in a-Si:H based p–i–n particle detectors", Thin Solid Films, Vol. 516, No. 15, 2008.

P. Queiroz, R. Ayouchi, M. Niehus, E. Morgado, A. Fedorov, J. Martinho, F. Wuensch, M. Kunst, R. Schwarz, "Photoinduced Excess Carrier Dynamics in PLD-Grown ZnO, Superlattices and Microstructures", Vol. 42, No. 1-6, 2007.

E. Morgado ,R. Schwarz, T. Braz, C. Casteleiro, A. Maçarico, M. Vieira, E. Alves, "Radiation induced defects in a-Si:H by 1.5 MeV He4 beam particles studied by photoconductivity and photothermal deflection spectroscopy", Journal of Non-Crystalline Solids, Vol. 352, No. 9-20, 2006.

R&D cooperation

99

Alexandre José Malheiro Bernardino


research unit ISR


url: www.isr.ist.utl.pt/~alex

keywords Computer Vision, Robotics, Control

research interests My main research interests are the development of real-time artificial vision methods for applications in robot control and surveillance, including both the low-level (tracking, filtering, visual servoing) and high-level aspects (decision, learning, development). To allow real-time operation, some complexity management mechanisms must be considered. In particular, I've been interested in how the human visual system deals with complexity both by morphological design (space-variant retina) and by cognitive development (attentional mechanisms). Being a multi-disciplinary area, it benefits not only from contributions from the exact sciences (mathematics, engineering, computer science), but also from biology, neurosciences and psychological sciences, where connections have been established along the years.

3 publications M. Taiana, J. Santos, J. Gaspar, J. Nascimento, A. Bernardino, P. Lima, "Tracking objects with generic calibrated sensors: an algorithm based on color and 3D shape features", Robotics and Autonomous Systems, special issue on Omnidirectional Robot Vision, Vol. 58, No. 6, pp. 784-795, June 2010.

Javier Traver, Alexandre Bernardino, "A review of log-polar imaging for visual perception in robotics", Robotics and Autonomous Systems, Vol 58, No. 4, pp. 378-398, April 2010.

P. Moreno López, A. Bernardino, J. Santos Victor, "Improving the SIFT descriptor with smooth derivative filters", Pattern Recognition Letters, Vol. 30, No. 1, 2009.

R&D cooperation IIT (IT), UPMC (FR), CMU (USA), EPFL (CH), Observit (PT)

100

Ana Luísa Nobre Fred


research unit IT


url: http://www.lx.it.pt/~afred/anawebit

keywords Pattern recognition, statistical models, syntactic models, hybrid methods, supervised learning, clustering, classifier combination, ensemble methods in clustering, data mining, signal processing, behavioral biometrics, affective computing, biomedical app

research interests The main research topic is pattern recognition, including statistical, structural, and hybrid approaches. Grammatical models, and Hidden Markov Models constitute examples of structural approaches. Hybrid methods bridge the gap between statistical and structural approaches, either by means of adequate choice of similarity measures (such as kernel-based methods), or by the use of hybrid pattern representations (such as attributed symbols). Special emphasis is put in learning techniques and algorithms (supervised methods - assuming known class labels, or unsupervised methods – for data mining), in particular the recent trend in fusion of information, known as classifier combination and ensemble methods, respectively in the supervised and unsupervised approaches. The application of these techniques to real world problems, namely biomedical applications, motivates the connection with other research areas, namely signal processing, information theory, and artificial intelligence.

3 publications A. Fred, J.L.G. Dietz, K. Liu, J. Filipe, (Eds.); Knowledge Discovery, Knowledge Engineering and Knowledge Management., Series: Communications in Computer and Information Science, Vol. 128, Springer, 2011.

A. Lourenço, H. Silva, D. P. Santos, A. Fred, "Towards a Finger Based ECG Biometric System", International Conference on Bio-inspired Systems and Signal Processing, 2011.

A. Fred, A. K. Jain, "Combining Multiple Clusterings Using Evidence", IEEE Transactions on Pattern Analysis and Machine Intelligence, Vol. 27, No. 6, 2005.

R&D cooperation

101

Carlos Filipe Gomes Bispo

position Assistant Professor Ph.D. 1997 Graduate School of Industrial Administration, The Robotics

Institute, Carnegie Mellon University research unit ISR


url: http://users.isr.ist.utl.pt/~cfb

keywords Queuing Networks, Inventory Control, Scheduling, Optimal Control.

research interests Research Interests - My main interests lie on the determination of classes of decision policies for networks of queues that insure them to be stable. The main tools used are Markov Decision Processes and Infinitesimal. Perturbations Analysis. In the area of Inventory Control I intend to derive processes to determine non strict priorities for decision problems in the context of multi-product with capacity bounds. In the area of Scheduling I have specific interests in Train Traffic Management for low traffic segments. In Optimal Control I intend to work on decentralized methodologies for large dimension problems with specific applications to networks of channels and reservoirs for water distribution. There are also interests on the application of operations management tools and methodologies to specific portuguese contexts, like the national health system, the justice system, and the public administration in general, with particular emphasis on local governement.

3 publications C. Bispo, "Managing simple re-entrant flow lines: Theoretical foundation and experimental results", IIE Transactions, Vol. 33, No. 8, 2001.

C. Bispo, "An echelon inventory based single stage cost function for a two station tandem system",Production Planning & Control, Vol. 10, No. 7, 1999.

C. Bispo, "Production planning and scheduling using a fuzzy decision system", IEEE Transactions on Robotics and Automation, Vol. 10, No. 2, 1994.

R&D cooperation

102

João Fernando Cardoso Silva Sequeira


research unit ISR



keywords Robotics Applications, Cooperative Robotics, Human-Robot Interaction

research interests Robot kinematics. Hybrid locomotion schemes and parallel manipulators. Control architectures for cooperative robotics. Properties of the basis building blocks in an architecture. Performance and stability. Networked robotics. Human-robot interaction. Human-Robot interfaces. Relations with models of human interactions.

3 publications J. Sequeira, Semiotics and human-robot interaction, ISBN978-3-902613-13-4, I-Tech Education and Publishing, 2007.

J. Sequeira, "Robust covariance estimation for sensor data fusion", IEEE International Workshop on Safety, Security, and Rescue Robotics, 2009.

J. Sequeira, "Semiotics and Human-Robot Interaction", Selected Papers from the International Conference on Informatics, Springer, 2008.

R&D cooperation

103

João Manuel de Freitas Xavier


research unit ISR


url: http://users.isr.ist.utl.pt/~jxavier/

keywords Processamento estatístico de sinal, geometria diferencial, optimização

research interests My main research area is signal processing on manifolds. This includes modeling, filtering, parametric estimation bounds, Riemannian centroid computation, manifold learning, smooth and nonsmooth optimization, etc.

3 publications J. Xavier, H. Manton, "On the generalization of AR processes to Riemannian manifolds", IEEE International Conference on Acoustics, Speech and Signal Processing, May 2006.

R. Ferreira, J. Xavier, J. P. Costeira and V. Barroso, "Newton method for Riemannian centroid computation in naturally reductive homogeneous spaces", IEEE International Conference on Acoustics, Speech and Signal Processing, May 2006

M. Beko, J. Xavier and V. Barroso, "Codebook design for non-coherent communication in multiple-antenna systems", IEEE International Conferenceon Acoustics, Speech and Signal Processing, May 2006.

R&D cooperation

104

João Paulo da Silva Neto




url: http://www.l2f.inesc-id.pt/~jpn/

keywords Speech Recognition, Automatic Transcription Systems, Semantic Processing of Multimedia Information, Spoken Interfaces for Dialogue Systems

research interests Our research is being developed along two main lines: the semantic processing of multimedia information and the development of spoken dialogue systems. In the *semantic processing of multimedia information* line we have been working in the development of techniques for characterizing the acoustic signal extracted from multimedia data. With this characterization we are able to generate metadata to represent the contents of that data. This metadata can be represented semantically in order to generate an adequate indexing and access to the multimedia information. In this characterization we generate information as speech/non-speech, background, and speaker gender segment classification, we transcribe speaker turn segments through our /AUDIMUS.//MEDIA/ speech recognition system, and we are using acoustic and prosodic cues to help segmenting the transcriptions in sentences. In the development of *spoken dialogue systems* our specific aim is to build multimodal input interface to the system.

3 publications J. Neto, H. Meinedo, M. Viveiros, R. Cassaca, C. Martins, D. Caseiro, "Broadcast News Subtitling System in Portuguese", IEEE International Conference on Acoustics, Speech and Signal processing, 2008.

H. Meinedo, M. Viveiros, J. Neto, "Evaluation of a Live Broadcast News Subtitling System for Portuguese", Interspeech 2008, 2008.

C. Martins, A. Teixeira, J. Neto, "Dynamic Language Modeling for European Portuguese", Computer Speech & Language, 2010.

R&D cooperation CPC HS, RTP, Promosoft, Priberam, Anditec, Edisoft

105

João Pedro Castilho Pereira Santos Gomes


research unit ISR


url: http://www.isr.ist.utl.pt/~jpg

keywords Signal processing for communications, channel identification and equalization, underwater acoustics

research interests Channel estimation and equalization in underwater acoustic channels and other severely dispersive transmission media: The research focuses on (i) equalization algorithms that can cope with intersymbol interference spanning hundreds of symbol intervals, and (ii) compensation of channel variations caused by differential Doppler in multipath propagation. Fast and numerically stable algorithms for adaptive filtering: RLS lattice filters are of particular interest, as their modular structure and excellent numerical properties make them well suited for real-time implementation in hardware and fixed-point DSPs. Array processing methods in underwater acoustics: Exploit the physics of sound propagation in ocean waveguides to achieve seamless multipath compensation. MIMO coherent communication with strong multipath. Joint communication and model-based tracking. Wireless underwater networks: Communication protocols must cope with high transmit latency and low link reliability. Genomic signal processing: Dimensionality reduction with scarce, high-dimensionality data snapshots. Statistical inference in gene regulatory networks.

3 publications J. Gomes, V. Barroso, "Array-Based QR-RLS Multichannel Lattice Filtering", IEEE Transactions on Signal Processing, Vol. 56, No. 8, 2008.

J. Gomes, A. Silva, S. Jesus, "Adaptive Spatial Combining for Passive Time-Reversed Communications", Journal of the Acoustical Society of Americavol, Vol. 124, no. 2, pp. 1038-1053, August 2008.

P. Oguz-Ekim, J. Gomes, J. Xavier, P. Oliveira, "A convex relaxation for approximate maximum-likelihood 2D source localization from range measurements", IEEE International Conference on Acoustics, Speech and Signal Processing, March 2010.

R&D cooperation Albatroz Engenharia (PT)

106

José António da Cruz Pinto Gaspar


research unit ISR



keywords Computer and Robot Vision, Omnidirectional Vision, Mobile Robot Navigation

research interests Research interests in the areas of Computer and Robot Vision, specially in the fields of 3D information recovery, Obstacle detection and Visual self-localisation for mobile robots. Worked/working areas: Omnidirectional Vision; Mobile Robots' Visual Self-Localisation and Navigation; Ground plane obstacle detection (GPOD); Surface reconstruction; Stereo matching based on Edge Features.

3 publications E. Grossmann, J. Gaspar, F. Orabona, "Discrete camera calibration from pixel streams", Computer Vision and Image Understanding, Vol. 114, Issue 2, pp. 198-209, February 2010.

M. Taiana, J. Santos, J. Gaspar, J. Nascimento, A. Bernardino, P. Lima, "Tracking objects with generic calibrated sensors : an algorithm based on color and 3D shape features", Robotics and Autonomous Systems, Volume 58, Issue 6, pp. 784-795, 30 June 2010.

J. Gaspar, N. Winters, E. Grossmann, J. Santos-Victor, "Toward Robot Perception through Omnidirectional Vision", chapter in book "Innovations in Intelligent Machines - 1", Springer, pp. 223-270 2007.

R&D cooperation

107

Luís Manuel Marques Custódio


research unit ISR


url: http://users.isr.ist.utl.pt/~lmmc

keywords Artificial Intelligence, Multi-Agent Systems, Multi-Robot Systems, Emotion-based Agents, Cooperative Learning

research interests Artificial Intelligence, with a focus on multi-agent systems, either virtual (e.g., web agents) or with a physical body (e.g., robots), and special interests on knowledge representation and reasoning, organizational issues, distributed decision making and social relations.

3 publications P. Lima, L. Custódio, "Artificial Intelligence and Systems Theory Applied to Cooperative Robots", International Journal of Advanced Robotic Systems, No. 3, 2004.

C. Sousa, L. Custódio, "Cooperative Reinforcement Learning: Exploring Communication and Cooperation Problems", IEEE International Symposium on Computational Intelligence in Robotics and Automation, 2005.

V. Pires, M. Arroz, L. Custódio, "Logic Based Hybrid Decision System for a Multi-robot Team", Conference on Intelligent Autonomous Systems, 2004.

R&D cooperation

108

Luís Miguel Veiga Vaz Caldas de Oliveira




url: http://www.l2f.inesc-id.pt/~lco

keywords Speech and Language Processing, Speech Production and Synthesis.

research interests My main area of research is speech processing, specifically speech production and synthesis with special emphasis on applications to European Portuguese. Speech processing is a very multidisciplinary research area whose goal is to develop systems with which a person can interact naturally, in her own language, using the full range of linguistic, para-linguistic and non-linguistic information conveyed in the speech signal. This requires large amounts of linguistic resources for the given language and that was part of the work performed by myself and others at the speech group of INESC during the late 90's. The current focus is now on speech-to-speech translation systems and spoken dialogue systems with multi-modal interfaces using digital agents modelled as human-like characters exhibiting personality and emotion. This advanced applications imposes new domains in the speech production process, namely the modeling of emotive and spontaneous speech. My current research interests include automatic multi-level speech annotation for speech synthesis using variable-length units and voice source modification for emotional speech synthesis.

3 publications D. Silva, L. Oliveira, M. Andrea, "Jitter Estimation Algorithms for Detection of Pathological Voices", EURASIP Journal on Advances in Signal Processing, 2009.

S. Paulo, L. C. Oliveira, "MuLAS: A Framework For Automatically Building Multi-Tier Corpora", Interspeech, ISCA, 2007.

J. P. Cabral, L. Oliveira, "EmoVoice: a System to Generate Emotions in Speech", Interspeech, ISCA, 2006.

R&D cooperation

109

Maria Margarida Campos da Silveira


research unit ISR


url: http://www.isr.ist.utl.pt/~msilveira/

keywords Image and video processing, computer vision, pattern recognition, medical imaging

research interests My research interests are in the area of image processing, computer vision, pattern recognition mostly appolied to medical imaging. I am currently interested in the computer aided diagnosis of Alzheimer's Disease from PET and MRI images of the brain.

3 publications R. Martins, P. Pina, J. S. Marques, M. Silveira, "Crater detection by a boosting approach", IEEE Geoscience and Remote Sensing Letters, Vol. 6, No. 1, 2009.

M. Silveira, S. Heleno, "Separation between Water and Land in SAR Images", IEEE Geoscience and Remote Sensing Letters, Vol. 6, No. 3, 2009.

M. Silveira, J. Nascimento, J. S. Marques, A. R. S. Marçal, T. Mendonça, S. Yamauchi, J. Maeda, J. Rozeira, “Comparison of Segmentation Methods for Melanoma Diagnosis in Dermoscopy Images”, IEEE Journal of Selected Topics in Signal Processing, Vol. 3, Num

R&D cooperation

110

Pedro Manuel Quintas Aguiar


research unit ISR


url: http://www.isr.ist.utl.pt/~aguiar

keywords Multimedia Signal Processing

research interests The ultimate goal of my research is to make computers extract high level content from images by seeking their simplest interpretation. This lead me to the areas of image processing, computer vision, machine learning, pattern recognition. Other (older) research interests include statistical signal processing, stochastic processes, nonlinear systems, automatic control.

3 publications J. Crespo and P. Aguiar, "Revisiting Complex Moments for 2D Shape Representation and Image Normalization", To appear in IEEE Transactions on Image Processing, 2011.

P. Aguiar, M. Stosic, J. Xavier, "On Singular Values of Partially Prescribed Matrices", ELSEVIER Journal of Linear Algebra and its Applications, vol. 429, 8-9, 2008.

A. Martins, P. Aguiar, and M. Figueiredo, "Orientation in Manhattan: Equiprojective Classes and Sequential Estimation", IEEE Trans. On Pattern Analysis and Machine Intelligence, vol. 27, No. 5, 2005.

R&D cooperation

111

Rodrigo Martins de Matos Ventura


research unit ISR


url: http://users.isr.ist.utl.pt/~yoda

keywords Cognitive Architectures, Field Robotics, Human-Robot Interaction, Emotion-based Agents.

research interests My research interests include the intersection between the fields of Artificial Intelligence and Robotics. I am particularly interested in Biologically-inspired Cognitive Architectures, targeting robots interacting with humans. Another research interest include Field Robotics, particularly in what concerns mobile robots for search and rescue scenarios. Both of these efforts take into account the presence of humans in the loop. Other interests include biomedical engineering, unmanned aerial vehicles, and air traffic control automation.

3 publications R. Ventura, C. Pinto-Ferreira, Responding efficiently to relevant stimuli using an emotion-based agent architecture. Neurocomputing, Vol. 72, pp. 2923–2930, August 2009.

A. Khmelinskii, R. Ventura, J. Sanches, A novel metric for bone marrow cells chromosome pairing, IEEE Transactions on Biomedical Engineering, Vol. 57, No. 6, pp. 1420–1429, 2010.

R. Ventura, "Emotions and empathy: A bridge between nature and society?", International Journal of Machine Consciousness, Vol. 2, No. 2, pp. 343–361, 2010.

R&D cooperation Visiting scholar at CMU, cooperation with IST spinoffs IdMind and UAVision, and with Portuguese Air Traffic authority NAV.

112

Telecommunications

113

Afonso Manuel dos Santos Barbosa


research unit IT



keywords Electromagnetic Wave Theory, Guided Wave Propagation, Complex Media

research interests Electromagnetic wave theory and applications with emphasis on guided wave propagation and passive guided wave structures for microwave, millimeter wave and optical frequencies; electromagnetic wave propagation in structures with complex media, chiral and double negative media.

3 publications A. Topa, C. Paiva, A. Barbosa, "Novel Propagation Features of Double Negative H-Guides", Microwave and Technology Letters, Vol. 47, No. 2, 2005.

A. Topa, C. Paiva, A. Barbosa, "Least SquaresBoundary Residual Method for the Analysis of Step Discontinuities in Open Chiral Waveguides", AËU-International Journal of Electronics and Communications, Vol. 55, No. 4, 2001.

A. Topa, C. Paiva, A. Barbosa, "Electromagnetic wave propagation in chiral H-guides", Progress in Electromagnetic Research- PIER, Vol. 103, 285-303, 2010.

R&D cooperation

114

António Simão de Carvalho Fernandes

position Full Professor Ph.D. 1977 University of Surrey, UK

research unit CEG-IST



keywords Economics, Engineering, Technology, Knowledge, Productivity, Value, Growth.

research interests Contribution to economic growth of knowledge, technology, capital and Engineering. Concepts’ definitions and economic modelling. Value creation and destruction and its co-relation with investment and consumption. Knowledge – Value co-relation.

3 publications A.S.C. Fernandes, "(Biblical) creation of value", International Journal of Engineering Management and Economics, Vol. 1, No. 1, pp.46–67, 2010.

A.S.C. Fernandes, "The Management Impact on Value Added – an Approximate Measure", IEEE International Conference on Industrial Engineering and Engineering Management, pp.1391-95, December 2009.

A.S.C. Fernandes, "Mais Conhecimento e Tecnologia para Desenvolver a Economia Portuguesa", Fundação Calouste Gulbenkian, 2007.

R&D cooperation

115

Carlos António Cardoso Fernandes


research unit IT


url: http://www.it.pt/?carlos

keywords Millimetrewave and Microwave Antennas, Mobile communications, Radiowave Propagation, Microwave Measurement Systems, Metamaterials

research interests Research interests span through the following complementary areas of electromagnetic waves applications: antenna design, pasive microwave and millimeter wave devices, radio wave propagation modeling in complex environments, microwave measurements and numerical modeling. The focus on antennas and propagation modeling is directed mainly to mobile communication applications. Work is being developed in relation with ultra wide band, multiple band and electronic reconfiguration antenna concepts. In millimeter waves, work on antennas is related to beam shaping for broadband mobile or ultra wideband space applications, based on lens antenna concept. In radio propagation modeling the interest is for complex environments, with multiple obstacles, transmission through walls, radio interference in communication systems, etc. The study of metamaterials (artificial materials with uncommon electromagnetic properties not available in natural media) is being explored for the design of new very compact microwave devices like filters, etc. All these topics are complemented with some research in numerical modeling and microwave measurement techniques.

3 publications C. Salema, C.A. Fernandes, R.K. Jha, Solid Dielectric Horn Antennas, Artech House, 1998

C. A. Fernandes, J. Fernandes, "Performance of Lens Antennas in Wireless Indoor Millimeter-Wave Applications", IEEE Transactions on Microwave Theory and Techniques, Vol. 47 , No. 6, 1999.

C.A.Fernandes, "Shaped-Beam Antennas", chapter in "Handbook of Antennas in Wireless Communications", CRC Press, 2001.

R&D cooperation University of Rennes (FR)

116

Mário Alexandre Teles de Figueiredo


research unit IT


url: http://www.lx.it.pt/~mtf/

keywords

research interests Image and signal processing and analysis, namely image restoration (denoising, deconvolution) and reconstruction; computer vision, namely image segmentation and motion modeling and analysis; wavelet-based methods; compressed sensing; information-theoretic methods; optimization; pattern recognition and machine learning, namely unsupervised learning, kernel-based methods, feature selection, model selection, and semi-supervised learning.

3 publications M. Figueiredo, A. K. Jain, "Unsupervised learning of finite mixture models," IEEE Transactions on Pattern Analysis and Machine Intelligence, Vol. 24, No. 3, pp. 381 – 396, 2002.

M. Figueiredo, R. Nowak, S. Wright, “Gradient projection for sparse reconstruction: application to compressed sensing and other inverse problems”, IEEE Journal of Selected Topics in Signal Processing: Special Issue on Convex Optimization Methods for Signal Processing, vol. 1, no. 4, pp. 586-598, 2007.

M. Elad, M. Figueiredo, Y. Ma, "On the role of sparse and redundant representations in image processing" (invited paper), Proceedings of the IEEE (Special Issue on Applications of Compressive Sensing and Sparse Representations), vol. 98, no. 6, pp. 972-982, 2010.

R&D cooperation

117

Victor Alberto Neves Barroso


research unit ISR



keywords Signal Processing, Telecomunications

research interests Signal Processing for Communications. Sensor Array and Multichannel Signal Processing. Signal Processing Theory and Methods

3 publications J. Gomes, V. Barroso, "Array-based QR-RLS multichannel lattice filtering", IEEE Transactions on Signal Processing, Vol. 56, No. 2, pp. 3510-3522, August 2008.

M. Beko, J. Xavier, and V. Barroso, "Further results on the capacity and error probability analysis of non-coherent MIMO systems in the low SNR regime", IEEE Transactions on Signal Processing, vol. 56, no. 7, pp. 2915-2930, July 2008.

M. Beko, J. Xavier, and V. Barroso, "Non-coherent communication in multiple-antenna Systems: Receiver design and Codebook construction", IEEE Transactions on Signal Processing, Vol. 55, No. 12, pp. 5703 - 5715, December 2007.

R&D cooperation

118

Adolfo da Visitação Tregeira Cartaxo


research unit IT



keywords Telecommunications, optical communications, optical fibre, systems, networks

research interests His main research interests are optical fibre telecommunication systems and networks, particularly their physical level. Specifically, current research interests include optical access networks, radio over fibre systems, wavelength division multiplexed (WDM) systems and networks, advanced signalling formats for very high bit rate lightwave systems, and numerical simulation techniques of telecommunication systems.

3 publications A. Cartaxo, "Cross-phase modulation in intensity modulation - direct detection WDM systems with multiple optical amplifiers and dispersion compensators", IEEE/OSA Journal of Lightwave Technology, Vol. 17, No. 2, pp. 178-190, 1999.

A. Cartaxo, B. Wedding, W. Idler, "Influence of fiber nonlinearity on the phase noise to intensity noise conversion in fiber transmission: theoretical and experimental analysis", IEEE/OSA Journal of Lightwave Technology, Vol. 16, No. 7, pp. 1187-1194, 1998.

T. Alves, A. Cartaxo, "Semi-analytical approach for performance evaluation of direct-detection OFDM optical communication systems", Optics Express, Optical Society of America, Vol. 17, No. 21, pp. 18714-18729, 2009.

R&D cooperation Nokia Siemens Networks Portugal, Universidad Politècnica de Valencia (SP), Corning (FR), Thales (FR), University of Essex (UK), University of Dresden (DE), DAS Photonics (SP), PT Inovação, EIT+ (PL) within the FP7 European project FIVER.

119

Carlos Manuel dos Reis Paiva


research unit IT



Keywords Classical electrodynamics; Electromagnetic wave theory and applications; Complex media in microwave engineering and photonics; New mathematical methods for electrical engineering:Differential forms; Geometric algebra. Nonlinear fiber optics:Fiber solitons

research interests My main current research interest is in the theoretical foundations of classical electrodynamics and its relation with special and general relativity. Namely, I want to use new mathematical tools in electromagnetic theory – such as differential forms and (Clifford) geometric algebra – in order to reach a new physical perspective on the relation between electromagnetic theory and relativity: to derive the two Maxwell equations (homogeneous and non-homogeneous, in spacetime) from two basic postulates (charge and magnetic flux conservation) in a metric-free setting so that they are applicable in special as well as in general relativity. My other current interests are: electromagnetic wave propagation in complex media (namely linear bianisotropic media and metamaterials such as double-negative media) and its applications in microwave engineering and photonics; nonlinear fiber optics, namely fiber solitons, and applications to fiber-optic communications systems; quantum physics and its applications in nanophotonics.

3 publications M. A. Ribeiro, C. R. Paiva, "Transformation and Moving Media: A Unified Approach Using Geometric Algebra," Chapter in Metamaterials and Plasmonics: Fundamentals, Modelling, Applications, edited by S. Zouhdi, A. Sihvola, A. P. Vinogradov, Springer, pp. 63-74, 2009.

S. A. Matos, M. A. Ribeiro, C. R. Paiva, "Anisotropy without tensors: a novel approach using geometric algebra," Optics Express, Vol. 15, No. 23, pp. 15175-15186, November 2007.

C. R. Paiva, M.A. Ribeiro, "Doppler shift from a composition of boosts with Thomas rotation: a spacetime algebra approach," Journal of Electromagnetic Waves and Applications, Vol. 20, No. 7, pp. 941-953, July 2006.

R&D cooperation

120

Fernando Manuel Bernardo Pereira


research unit IT


url: http://www.img.lx.it.pt/~fp/

keywords Visual information, coding, analysis, description, summarization, adaptation, representation standards, quality of experience, multimedia applications.

research interests The research interests are related to the multiple ways that visual information – notably images and video - may be processed in the context of advanced multimedia applications. This processing chain ranges from analysis, segmentation, coding and description to searching, filtering, summarization and adaptation, notably in increasingly heterogeneous environments, devices and user preferences.

Processing, notably coding, under efficiency, complexity, scalability, random access, error resilience and interactivity constraints is addressed.

Particular attention is dedicated to visual coding and description standards, notably MPEG standards and ITU-T recommendations, considering their impact on the evolution and deployment of visual representation technologies.

Finally, quality issues and more specifically quality of experience assessment metrics and methodologies are also considered.

3 publications F. Pereira, T. Ebrahimi (ed.), The MPEG-4 Book, Prentice Hall, 2002.

F.Pereira, I.Burnett, "Universal multimedia experiences for tomorrow", IEEE Signal Processing Magazine, Special Issue on Universal Multimedia Access, Vol.20, No 2, pp. 63-73, March 2003.

F.Pereira, A.Vetro, T.Sikora, "Multimedia retrieval and delivery: essential metadata challenges and standards", Proceedings of the IEEE, vol. 96, nº 4, pp. 721-744, April 2008.

R&D cooperation EPFL (CH), Universitat Politecnica di Catalunya (SP), University of Surrey (UK), Politecnico di Milano (IT), University of Hannover (D), Universidad Politécnica di Madrid (SP), INRIA (F), Mitsubishi Labs (USA)

121

José Manuel Bioucas Dias


research unit IT


url: http://www.lx.it.pt/~bioucas/

keywords Statistic Signal and Image Processing Image Restoration; Image Segmentation; Computed Imaging Inverse Problems; Compressed Sensing; Applications Remote Sensing; Medical Imaging; Synthetic Aperture Radar (SAR), Hyperspectral Linear Unmixing;

research interests Statistical Image Processing: Image Restoration (denoising, deblurring, blind deconvolution), Image Segmentation/Classification, Computed Imaging, and Phase Unwrapping. Energy Minimization: Iterative Methods, Expectation Maximization, Majorization Minimization, Graph-Cuts. Applications in Remote Sensing and Medical Imaging: Synthetic Aperture Radar (SAR), Weather Radar, Hyperspectral Imagery, Ultrasound Imaging, Magnetic Resonance Imaging.

3 publications J. Bioucas-Dias, M. Figueiredo, "Multiplicative noise removal using variable splitting and constrained optimization", IEEE Transactions on Image Processing, Vol. 19, No. 7, pp. 1720-1730, 2009.

G. Valadão, J Bioucas-Dias, "CAPE: Combinatorial absolute phase estimation", Journal of the Optical Society of America A, Vol. 26, No. 9, pp. 2093-2106, 2009.

J. Bioucas-Dias, V. Katkovnik, J. Astola, and K. Egiazarian, "Absolute phase estimation: adaptive local denoising and global unwrapping", Applied Optics, Vol. 47. No, 29, pp. 5358-5369, 2008.

R&D cooperation

122

José Luís Bento Coelho

position Associate Professor (with Habilitation) Ph.D. 1983 ISVR, Univ. Southampton, UK

research unit CAPS

contacts mail: [email protected] tel: (+351) 218419393 Fax +351218465303


keywords Acoustics, Noise control, Urban noise, Room acoustics, Sound radiation and propagation modelling

research interests Virtual acoustical reality: real time modelling of the acoustics of enclosures and of open spaces; Acoustic measurement techniques: optimization; Environmental acoustics: noise in cities, soundscapes and quality noise maps; Transportation noise: modelling and computer simulation; Noise control: duct acoustics, silencers, noise attenuation principles and devices.

3 publications J. Bento Coelho, "Community Noise Ordinances", in Handbook of Acoustics & Vibration Control, Ed. Malcolm J. Crocker, Wiley, 2007.

J. P. Paulo, C. R. Martins, J. L. Bento Coelho, A hybrid MLS technique for room impulse response estimation, Applied Acoustics, Vol. 70, No. 4, pp. 556-562, April 2009.

J. P. Paulo, J. L. Bento Coelho, M. A. T. Figueiredo, Statistical classification of road pavements using near field vehicle rolling noise measurements, Journal of Acoustic Society of America, Vol. 128, No. 4, pp. 1747-1754, October 2010.

R&D cooperation REFER, Portuguese Rail Authority - railway traffic noise (P), Municipalities of Almada, Loures (PT), Portuguese Ministry of Education (PT)

123

Luís Manuel de Jesus Sousa Correia


research unit IT


url: http://grow.lx.it.pt

keywords Mobile and wireless communications

research interests Work focused in Wireless/Mobile communications in the areas of propagation, channel characterisation, radio networks, traffic, and services.

3 publications L. M. Correia, H. Abramowicz, M. Johnsson, K. Wünstel (eds.), Architecture and Design for the Future Internet, Springer, 2010.

L. M. Correia, D. Zeller, O. Blume, Y. Jading, G. Auer, L. Van der Perre, D. Ferling, I. Godor, “Challenges and Enabling Technologies for Energy Aware Mobile Radio Networks”, IEEE Communications Magazine, Vol. 48, No. 11, , pp. 66-72, November 2010.

L. Ferreira, M. Amorim, L. Iannone, L. Berlemann, L. M. Correia, "Opportunistic Management of Spontaneous and Heterogeneous Wireless Mesh Networks", IEEE Wireless Communications, Vol. 17, No. 2, pp. 41-16, April 2010.

R&D cooperation Vodafone (PT), Optimus (PT), Ericsson (PT), NAV (PT), Portugal Telecom Inovação (PT), ANACOM (PT), Aalto University (FI), Alcatel Lucent (DE), BME (HU), CEA-LETI (FR), DoCoMo (DE), Ericsson (HU), Ericsson (SE), ETSI (FR), Eurescom (DE), Fraunhofer SIT FhG (DE), FT-Orange (FR), HP (UK), IMEC (BE), INRIA (FR), Institut Telecom (FR), NEC (DE), NICTA (AU), Nokia Siemens Networks (FI), Nokia Siemens Networks (DE), NXP (FR), Robotiker (ES), Royal Institute of Technology - KTH (SE), SICS (SE), Technion (IS), Technical University of Dresden (DE), Telecom Italia (IT), Telefónica TID (ES), Trinity College Dublin (IR), TTI Norte (ES), University of Cantabria (ES), University of Bremen (DE), University of Oulu (FI), University of Paderborn (DE), University of Surrey (UK).

124

Mª Emília M. da Fonseca e Silva da Costa Manso


research unit IPFN



keywords Microwave and millimetre wave systems, Microwave measuring techniques, Plasma diagnostics, Wave propagation, Signal processing.

research interests Development of microwave/mm wave instrumentation (radars) for the diagnostic of Fusion Plasmas. Measuring techniques in microwave and mm wave domains. Signal processing techniques to analyse the complex plasma response Modelling of wave propagation in plasmas.

3 publications L. Meneses, L. Cupido, M. E. Manso, JET-EFDA contributors, "New frequency translation technique for FM-CW reflectometry," Review of Scientific Instruments, Vol.81, Issue 10, October 2010.

L. Meneses, L. Cupido, M. E. Manso, "A novel approach to Correlation Reflectometry", Apresentação oral no "26th Symposium on Fusion Technology", Setembro 2010.

L. Fattorini, P. Lang, M. E. Manso, et al., "High temporal and spatial resolution reflectometry investigations of type I ELMs induced edge barrier collapse at ASDEX Upgrade", Plasma Physics and Controlled Fusion, 50, 12, 125001, 2008.

R&D cooperation

125

António Armando Miranda Rodrigues da Costa





keywords Pulsars, Geometrodynamics, Electrodynamics, stochastic chaos, Radio frequency radiation, gamma-ray radiation, High Energy Plasma Astrophysics.

research interests Pulsars are neutron stars. They are the compact remnant of a supernova explosion, about the mass of the sun, with a radius of only 10km: in effect a huge atomic nucleus. As they spin fast and have a high value magnetic field, they radiate collimated beams of electromagnetic waves observed as pulses, lighthouse like, once per rotation, the pulsar phenomena. There are about 1200 radio pulsars known today. The work in the field of pulsar electrodynamics to construct a reasonable radiation mechanism requires the study of physical processes, related to several fields of Physics happening in extreme conditions: high energy plasma astrophysics (electromagnetofluid dynamics) in the framework of Geometrodynamics and Quantum Physics; and move the frontiers of knowledge in fields such as vacuum electrodynamics, atoms and kinetic theory of radiative plasmas in hyper strong electromagnetic fields (with the Lorentz factor, and the pulsar magnetic induction), radiation hydrodynamics, interaction of matter and radiation, collective effects in the rest frame of the magnetospheric plasma and curved space-time.

3 publications D. A. Diver, A. A. da Costa, E. W. Laing, "Coupling between electrostatic and electromagnetic behaviour in a cylindrical equal-mass plasma", Astro. & Astrophys, Vol. 387, pp. 339-346, 2002.

A. A. Da Costa,., D. A. Diver, G. A. Stewart, "Pulsar magnetospheres: numerical simulations of large amplitude electron-positron oscilations", Astro & Astrophys., Vol. 366, pp. 129-137, 2001.

A. A. da Costa, "Pulsar Geometrodynamics: the Classical and Quantum Structure of the Stars", Conference Astrophysical Dynamics to commemorate the work of F. D. Kahn, FRS, April 1999 (ib.), Astrophys. Space Sci, 272, 263-27, 2000.

R&D cooperation

126

António Manuel Restani Graça Alves Moreira


research unit IT



keywords Printed antennas; Laptop antennas; multi-band antennas; mobile terminal antennas; antennas for MIMO systems

research interests Analysis, design, fabrication and test of patch antenna elements and arrays to be used in mobile terminals, such as handsets, PDAs and laptop PCs. Compact antennas for Bluetooth/IEEE 802.11b and IEEE 802.11a/HiperLAN2 applications. Compact antennas for UWB applications. Multiple antennas for MIMO systems.

3 publications Y.Rahmat-Samii, J. Guterman, A. Alves Moreira, C. Peixeiro, "Integrated Antennas for Wireless Personal Communications", Modern Antenna Handbook, John Wiley & Sons, 2008.

J. Guterman, A. Alves Moreira, C. Peixeiro, Y. Rahmat-Samii, "Wrapped Microstrip Antennas for Laptop Computers", IEEE Antennas & Propagation Magazine, Vol. 51, No. 4, 2009.

J. Guterman, A.Alves Moreira, C.Peixeiro, "Integration of Omnidirectional Wrapped Microstrip Antennas into Laptops", IEEE Antennas and Wireless Propagation Letters, Vol. 5, No. 1, 2006.

R&D cooperation

127

António Manuel de Assis Gusmão Correia

position Assistant Professor (with Habilitation) Ph.D. 1987 IST, TU Lisbon

research unit CAPS



keywords Digital transmission theory; digital transmission techniques; broadband wireless systems; physical layer design; performance evaluation.

research interests The research activities and interests of Prof. Gusmão and his team ( Digital communications Group, CAPS) involve digital transmission theory and techniques, with applications to wireless communication systems, jointly dealing with the following issues within the digital communications area: modulation, channel coding, equalization, space diversity, multiplexing and multiple access, signal processing methods (including nonlinear and/or advanced iterative detection/decoding methods) for transmitter and receiver implementation. In recent years, the main activities have been concerned with mobile broadband applications, including the specification of the physical layer for future systems and the development of appropriate performance evaluation methods, by analytical and simulation means. In the mobile radio context, the main original contributions in recent years involve advanced "FFT-based" (Fast Fourier Transform) block transmission techniques for future B3G ( Beyond 3G ) systems, namely with the aim of providing data rates up to 100 Mbps with wide area coverage and 1 Gbps with local area coverage.

3 publications A. Correia, P. Torres, R. Dinis, N. Esteves, "A Turbo FDE Technique for Reduced-CP SC-Based Block Transmission Systems", IEEE Transactions on Communications, Vol. 55, No. 1, 2007.

A. Correia, P. Torres, R. Dinis, N. Esteves, "A Reduced-CP Approach to SC/FDE Block Transmission for Broadband Wireless Communications", IEEE Transactions on Communications, Vol. 55, No. 4, 2007.

R. Dinis, A. Correia, A Class of Nonlinear Signal-Processing Schemes for Bandwidth-Efficient OFDM Transmission with Low Envelope Fluctuation, IEEE Transactions on Communications, Vol. 52, No. 11, 2004.

R&D cooperation

128

António Carlos Cristovão Matias de Almeida


research unit IT


url: http://www.lx.it.pt/~aca/

keywords Congestion control, stateless router algorithms, binary congestion signalling, rate-based control

research interests Telecommunications

3 publications A. Almeida, C. Belo, "Router-Assisted Congestion Control with Probabilistic Marking" - Chapter in Traffic and Performance Engineering for Heterogeneous Networks, D. Kouvatsos, River Publishers, 2009.

A. Almeida, C. Belo, "Explicit congestion control based on 1-bit probabilistic marking", Computer Communications Journal, Vol. 33, No. S1, pp. 30 - 40, November, 2010.

A. Almeida, "Analysis and Simulation of a Router-Assisted Congestion Control Mechanism", IEICE Trans. on Communications, Vol. E93-B, No. 4, pp. 889 - 906, April, 2010.

R&D cooperation

129

António José Castelo Branco Rodrigues

position Assistant Professor Ph.D. 1997 Catholic University of Louvain, Louvain-la-Neuve, Belgium

research unit IT



keywords Wireless Communications, Satellite Communications, Radio Resource Management, MIMO Systems, OFDM, Beyond 3G Systems, Location Based Systems, Sensor Networks

research interests Wireless communications including modulation, coding, multiple access techniques, cellular mobile radio systems, digital radio transmission, diversity reception and equalization problems for mobile environments including satellite/mobile systems. Location and positioning systems and services. Sensor Networks. Wireless Networks (WiFi, WiMax, UWB, etc.). Digital transmission, TV and multimedia evolution, digital relay links and optical communication systems. Cognitive radio systems and flexible spectrum usage.

3 publications J. Silva, N. Souto, F. Cercas, R. Dinis, A. Correia, A. Rodrigues, "Equalization based receivers for wideband MIMO/BLAST systems", Wireless Personal Communications, Springer, Vol. 40, No. 3, 2007.

P. Vieira, M. Vieira, M. P. Rodrigues, A. Rodrigues, "A novel vehicular mobility model for wireless networks", Wireless Personal Communications, Springer, Vol. 43, No. 8, 2007.

F. Monteiro, A. Rodrigues, "Phase error resilience to I/Q mismatch of a simplified CPM receiver", IEEE Microwave and Wireless Components Letters, Vol. 15, No. 9, 2005.

R&D cooperation

130

António Luís Campos da Silva Topa


research unit IT


url: http://193.136.221.2/person_detail_p.asp?ID=519

keywords Optical Waveguides, Electromagnetics of Complex Media, Anisotropic media, Chiral Media, Bianisotropic Media, Omega Media, Metamaterials, Double Negative Media, Cognitive radio.

research interests Research interests are in the area of the characterization of the electromagnetic wave propagation and radiation in three-dimensional planar or circular waveguides involving complex media and metamaterials with negative refractive index (NRI): (1) The work on complex media has been mainly focused in the analysis of waveguides filled with chiral and omega media, finding application in the optical and millimetre-wave regimes. Both radiation and leaky modes have been investigated to suggest future application to new devices. (2) The work developed in metamaterials has been essentially devoted to the analysis of Double Negative Nonradiative Dielectric Waveguides (DNG-NRD) and DNG/DPS (Double Positive Media) directional couplers operating as contra-directional coupling devices. Anomalous refraction and backward waves suggest promising applications in the design of new waveguide components.

3 publications A. Topa, "Dispersion and Losses in Metamaterial DNG H-guides", Metamaterials and Plasmonics: Fundamentals, Modelling and Applications, Springer, 2009.

A. Topa, "Electromagnetic Wave Propagation in Omega Waveguides:Discrete Complex Modes and Application to a Ridge Waveguide", Progress in Electromagnetic Research, EMW Publishing, 2004.

A. Topa, "Guidance and Leakage Behavior of Uniaxial Ridge Waveguides", Journal of Electromagnetic Waves and Applications, Vol. 23, No. 13, 2009.

R&D cooperation

131

Custódio José de Oliveira Peixeiro


research unit IT



keywords Analysis, design, fabrication and test of printed antennas and circuits

research interests Analysis, design, fabrication and test of small and compact multiband and/or wideband microstrip patch antenna elements and arrays. The antenna elements are intended for mobile communication and WLAN applications. The analysis takes into account that the antenna elements will be integrated into small mobile terminals (handsets, PDAs and laptop PCs) and potentially with MIMO antenna array systems. Antenna-user interaction is also evaluated. Single and multi-feed patches with slots are considered.

3 publications B. Rodriguez, B. Sensale, V. Leitao, C. Peixeiro, "MFS Analysis of Microstrip Antennas using the Method of Fundamental Solutions - A Meshless Method", Dynamic Publishers Inc., 2008.

Y. Rahmat-Samii, J. Guterman, A.Alves Moreira, C. Peixeiro, "Integrated Antennas for Wireless Personal Communications", Modern Antenna Handbook, John Wiley, 2008.

J. Guterman, A. Alves Moreira, C.Peixeiro, Y. Rahmat-Samii, "Wrapped Microstrip Antennas for Laptop Computers", IEEE Antennas & Propagation Magazine, Vol. 51, No. 4, 2009.

R&D cooperation

132

Fernando Duarte Nunes


research unit IT



keywords Channel and Doppler frequency estimation in single and multicarrier receivers, stochastic nonlinear filtering applications, acquisition and tracking in GPS/Galileo receivers.

research interests His current research interests include the study of new architectures for the code and frequency acquisition and tracking in GNSS (Galileo and GPS) receivers, especially aiming at processing the new modulation schemes, such as the BOC, MBOC and AltBOC. These architectures (including the Vector DLL) are based on stochastic nonlinear filtering which encompasses the extended Kalman filter, the Gaussian sums filter and the particle filters. He is also interested in problems of multipath and near-far effect mitigation in GNSS receivers, for highly-accelerative, urban canyon, and indoor environments. In the context of digital communications he is interested in problems of carrier frequency offset tracking and channel estimation in single and multicarrier receivers with fast fading scenarios.

3 publications F. Nunes, F. Sousa, J. Leitão, “Gating Functions for Multipath Mitigation in GNSS BOC Signals”, IEEE Transactions on Aerospace and Electronic Systems, vol. 43, pp. 951-964, July 2007.

F. Nunes, J. Leitão, F. Sousa, “Nonlinear Filtering in GNSS Pseudorange Dynamics Estimation Combining Code Delay and Carrier Phase”, IEEE Journal of Selected Topics in Signal Processing”, vol. 3, pp. 639-650, August 2009.

N. B.Delgado, F. Nunes, “Satellite Selection Method for Multi-Constellation GNSS Using Convex Geometry”, IEEE Transactions on Vehicular Technology, vol. 59, pp. 4289-4297, November 2010.

R&D cooperation

133

Francisco Alberto Sena da Silva


research unit IT



keywords Importance Sampling, Simulation, Large Deviations.

research interests Efficient Simulation. Large Deviations and Importance Sampling. Communication Theory and Pattern Recognition.

3 publications F. Silva, J. Leitão, "Importance Sampling Evaluation of Digital Phase Detectors with Carrier Phase Tracking. A Large Deviations Approach", IEEE Transactions on Signal Processing, Vol. 56, No. 12, 2008.

F. Silva, J. Leitão, "Importance Sampling Evaluation of Digital Phase Detectors Based on Extended Kalman-Bucy Filters", IEEE International Conference on Acoustics, Speech and Signal Processing, Vol. 2001.

F. Silva, J. Leitão, "Error Floor Assessment of Digital Phase Detectors with Carrier Phase Tracking. A Large Deviations Approach", International Symposium on Information Theory, 2001.

R&D cooperation

134

João Avelino Passos da Cunha Serra





keywords

research interests

3 publications

R&D cooperation

135

João José de Oliveira Pires


research unit IT



keywords Optical networks, optical switching, IP over WDM, long-reach EPON

research interests The researcher interests are focused on the areas of optical networking and broadband access networks. The networking area involves studies such as routing and wavelength assignment in optical circuit switching and optical burst switching networks, and aspects related with the interaction between logical and physical layers, like evaluating the impact of physical impairments on the performance of IP/MPLS over WDM networks. The second area is mainly concerned with the study of new architectures and paradigms for 10 Gbps EPONs with high survivability.

3 publications J. J. O. Pires, L. G. C. Cancela, "Theoretical insights into the impact of coherent and incoherent crosstalk on optical DPSK signals," IEEE/OSA Journal of Lightwave Technology, Vol. 28, No. 19, p. 2766-2774, August 2010.

J. J. O. Pires, L. G. C. Cancela, "Estimating the performance of direct-detection DPSK in optical networking environments using eigenfunction expansion techniques," IEEE/OSA Journal of Lightwave Technology , Vol, 28, No.13, pp. 1994-2003, July 2010.

J. J. O. Pires, L. G. C. Cancela, "A contribution to study the effect of multipath coherent crosstalk due to optical network nodes on DPSK signals," IEEE Photonics Technology Letters, Vol. 21, No. 20, pp. 1499-1501, October 2009.

R&D cooperation Nokia Siemens Networks (PT)

136

José Eduardo Charters R. da Cunha Sanguino


research unit IT



keywords Positioning, Radio Navigation, Global Navigation Satellite Systems.

research interests Range-based positioning and navigation. Satellite radionavigation systems (GPS, GLONASS, Galileo). Geolocation on cellular mobile radio systems (GSM and UMTS). Applications for location-based services.

3 publications J. Sanguino, F. Tocha, A. Rodriues, "WAW Location-based Service Positioning," Wireless Personal Communications Journal, Special Issue on Wireless Personal Multimedia Communications, Springer, September 2010.

J. Sanguino, F. Tocha, A. Rodrigues, "Improving Positioning Accuracy in WAW Location-based Services," IEEE International Symposium on Wireless Communication Systems, pp. 123-127, October 2008.

J. Sanguino, F. Tocha, A. Rodrigues, "Enhanced WAW Location-based Service Positioning," The 11th International Symposium on Wireless Personal Multimedia Communications, September 2008.

R&D cooperation

137

Maria Hermínia Caeiro Costa Marçal


research unit IPFN



keywords Propagation of EM waves in various media; Relativity Theory; Waves in plasmas.

research interests

3 publications A. Brinca, A. Carvalho Fernandes, A. Costa, M.E. Manso, M. J. Martins, M.H. Marcal, Propagação e Radiação de Ondas Electromagnéticas, Associação dos Estudantes do IST, 2003.

A. Brinca, F. Romeiras, L. Gomberoff, M. H. Marcal, "On the generation of totem pole emissions", Journal of Geophysical Research - 109 (A06201), American Geophysical Union, 2004.

M. H. Marcal, "Analysis of Light Interaction with a Moving Dielectric with Applicattions to Acceleration Sensing", SPIE The International Society for Optical Engineering, 5th Congress on Modern Optics, 1998.

R&D cooperation

138

Maria João Marques Martins


research unit Cie3



keywords

research interests Optical communications and optoElectronics; Radiation, Metamaterials applications. Influence of radiation fields on optoelectronic components and devices. A recent evolution of our work program (2006-2007) consists in the design and implementation of sensors for applications in medicine, in telecommunications, environmental applications (gas sensors) and testing of reliability of integrated components.

3 publications A. Brinca, A. Carvalho Fernandes, A. Costa, M. E. Manso, M. J. Martins, M. H. Marcal, Propagação e Radiação de Ondas Electromagnéticas, Associação dos Estudantes do IST, 2003.

M. Pereira, M. J. Martins, O. Bonnaud, "Thin Film Transistor Gas Sensors: Materials, Manufacturing Technologies and Test Results", Elektronika ir Elektrotechnika, ISSN 392-1215, 2007.

F. Klett, M. J. Martins, P. Pharow, "Work in Progress: European Education without Borders and the Challenges for Technology as Mediator", Frontiers in Education Conference, October 2006.

R&D cooperation Université de Rennes (FR), Université Pierre Mendés (FR), Université Joseph Fourier, Grenoble (FR), ETSI, Universidad de Vigo (SP), Universidad Politecnica de Valencia (SP), Universität Ulm (GE), University of Bratislava, (Slo)

139

Maria Paula dos Santos Queluz Rodrigues

position Assistant Professor Ph.D. 1996 Université Catholique de Louvain

research unit IT


url: www.img.lx.it.pt/~mpq

keywords Watermarking; Content authentication; Fingerprinting; Image quality metric; Objective image quality; Subjective image quality.

research interests Watermarking techniques for image/video content authentication, fingerprinting and indexing. Non-reference and reduced-reference metrics for blind assessment of images/video quality.

3 publications T. Brandão, M. P. Queluz, "No-reference quality assessment of H.264/AVC encoded video", IEEE Transactions on Circuits and Systems for video Technology, pp. 1437-1447, November 2010.

P. Vieira, M. P. Queluz, A. Rodrigues, " Capacity Enhancement Using MIMO Antenna Arrays in Realistic Macro-Cellular Urban Environment ", Wireless Personal Communications , Vol. 55, No 2, October 2010.

F. Klett, M. J. Martins, P. Pharow, Technology as Mediator, ASEE/IEEE Frontiers in Education Conference, October 2007.

R&D cooperation

140

Paulo Luís Serras Lobato Correia


research unit IT

contacts mail: http://www.it.pt/person_detail_p.asp?ID=390

tel: (+351) 218418461

url: http://www.img.lx.it.pt/~plc/

keywords Image and Video Analysis; Video Object Segmentation; Objective Evaluation of Segmentation Quality; People Recognition using Biometrics; Object-based Feature Extraction; Description Creation; Video Coding; Multimedia Communications

research interests Research interests include video analysis and processing, including biometric recognition and the secure storage of biometric templates, road pavement surface analysis, video segmentation, objective video segmentation quality evaluation and content-based description.

3 publications H. Oliveira, P. L. Correia, "Supervised Crack Detection and Classification in Images of Road Pavement Flexible Surfaces" - Chapter of the book: Recent Advances in Signal Processing, In-Tech, 2009,.

P. Correia, "Conceitos Básicos de Codificação Digital", Chapter of the book: Comunicações Audiovisuais: Tecnologias, Normas e Aplicações, Editor: Prof. Fernando Pereira, IST Press, July 2009.

Sanchit, M. Ramalho, P.L. Correia, L.D. Soares; "Biometric Identification through Palm and Dorsal Hand Vein Patterns", EUROCON and CONFTELE 2011, April, 2011.

R&D cooperation

141

Pedro Miguel Assis Ferreira


research unit ISR

contacts mail: [email protected] tel:


keywords Telecommunications management and policy, interconnection, computer networks with quality of services, economics of networks.

research interests The development of the telecommunications industry over time, associated technological, business, economics and legal issues. Public policies for the telecommunications sector and the management of telecommunications technology. Interconnection in the IP world, provisioning and routing games, the effect of selfishness in the efficiency of the telecom market and resulting communication networks.

3 publications A., Mateus, P. Ferreira, "Actual Inefficiency from Provisioning the Internet Selfishly", 6th International Conference on Networking, April 2007.

P. Ferreira, M. Sirbu, "Selfish Provisioning of Interconnected Communication Networks: Implications for Industry Structure", Conference on Electronic Commerce, Association for Computer Machinery (ACM), SIGecom Special Interest Group, June 2005.

P. Ferreira, M. Sirbu, "The Inefficiency of Markets for Provisioning Communication Networks", Annual Telecommunication Policy Research Conference, October 2004.

R&D cooperation

142

Victor Manuel Paulino Vargas




url: http://web.ist.utl.pt/~D898

keywords

research interests

3 publications

R&D cooperation

Documents

2011 Edition - Técnico Lisboa - Autenticação · - Qenergia - Metropolitano de Lisboa . 8 ... contacts mail: [email protected] tel: (+351) 213100233 url: keywords Communication