SATELLITE NAVIGATIONIN

THE CZECH REPUBLIC

(CGSIC-IISC Czech National Report 2005)

Prof. František VejražkaCzech Technical University in Prague

History of GNSS in the Czech Republic• 70’s

– development of aircraft industry for Warshaw Pact in the time of cold war

History of GNSS in the Czech Republic• 70’s

– development of aircraft industry for the Warshaw Pact in the time of cold war

•Aero L159

History of GNSS in the Czech Republic• 70’s

– development of aircraft industry for the Warshaw Pact in the time of cold war

– global navigation systems for civil aviation

•Aero L410

History of GNSS in the Czech Republic

• 70’s– development of aircraft industry for the

Warshaw Pact in the time of cold war– global navigation systems for civil aviation

• experiments with Omega• experiments with TRANSIT NNSS• experiments with GPS NAVSTAR

History of GNSS in the Czech Republic• 70’s

– development of aircraft industry for the Warshaw Pact in the time of cold war

– global navigation systems for civil aviation• experiments with Omega• experiments with TRANSIT NNSS• experiments with GPS NAVSTAR

– future of satellite navigation recognized– political situation prevented from

deployment of SATNAV in the Czech Republic

History of GNSS in the Czech Republic• beginning of 80’s

– position determination of Geodetical observatory Pecný by NNSS

• 1984– experiments with GPS signal reception on

CTU– first off-line measurement of position by

GPS– development of two channel sequential

receiver

History of GNSS in the Czech Republic• 1990

– industrial production of GPS receiver for Warshaw Pact military aircrafts (20 pcs)

History of GNSS in the Czech Republic• 1990

– industrial production of GPS receiver for Warshaw Pact military aircrafts (20 pcs)

• 1994– GPS receiver for infantry

History of GNSS in the Czech Republic• 1990

– industrial production of GPS receiver for Warshaw Pact military aircrafts (20 pcs)

• 1994– GPS receiver for infantry– experiments with DGPS

History of GNSS in the Czech Republic• 1995

– DGPS reference station– tests of „dual system“ for the Czech Army

History of GNSS in the Czech Republic• 1995

– DGPS reference station– tests of „dual system“ for the Czech Army

• 1997– implementation of „dual system“ in the

Czech Army• tests in Air Forces• tests in SFOR troups in Jugoslavia

– implementation of GPS in the Czech Army, first coordinated approach managed by Ministry of Defence

History of GNSS in the Czech Republic• 1997

– GPS in the Czech Army coordinated• NATO• P(Y) code, etc.

– sporadic civil GPS applications:• municipal transport control• maintenance of riverbed of rivers Morava and Labe• precision determination of places of excavation for

gas mains repair works• mapping and maintenance of water and gas

pipelines• searching of hydrants under snow by fire brigade• precision agriculture

History of GNSS in the Czech Republic• 2000

– Ministry of Transport called for projects of science and research and initiated a project „The Czech Republic Participation in Project GALILEO“

– Czech Technical University offered solution of the project in 2001 - 2006

• 2001– 5 pilot projects as a part of the main project– (however) GPS receivers (not GALILEO) are

used in projects

„Czech Republic Participation in Project GALILEO“

• open-handedness of Ministry of Transport

• 4 co-operating groups were set up:

– 2 from University– 2 from industry

• they – solved 5 pilot projects – could use a modern HW and SW technology– stimulated many new SATNAV applications

„Czech Republic Participation in Project GALILEO“

• pointed a need of co-ordination of GNSS applications

• 2004

participation of the Czech Republic on European Radio-Navigation Plan (ERNP)

• 2005

GNSS Co-ordination Board of the Government of the Czech Republic was established

„Czech Republic Participation in Project GALILEO“ – pilot projects:1. Experimental receiver for GNSS

2. Control and securing of secondary railway lines using GNSS

3. Information system for support of danger goods transport using GNSS

4. Optimalisation of road transport control using GNSS

5. Monitoring and control of movements on airports using GNSS

PILOT PROJECT 1Experimental receiverMean for development of algorithms of processing of signals of all navigation systems and their augmentations

PowerPCjádro

PowerPCjádro

LNA

channel 1

A/D

FPGA XilinxVirtex-II Pro

DSP and ProcessorRF partGNSS antenna

Synthesiser

LNA

LNA

channel 2

channel 3

PILOT PROJECT 2 GNSS for secondary railway lines

PILOT PROJECT 2 GNSS for secondary railway lines

KN 36018Skřínkadispečerského pracoviště

PILOT PROJECT 3 GNSS for danger goods transport

PILOT PROJECT 3 GNSS for danger goods transport

PILOT PROJECT 3 GNSS for danger goods transport

PILOT PROJECT 4 GNSS for road transport control

Application

PILOT PROJECT 4 GNSS for road transport control

PILOT PROJECT 5 GNSS for control of movement on airport

Other applicationsIntegrated rescue systems, police, …

rescue service Karlovy Vary

police Kadaň

Other applicationsCZEPOS - network of reference stations

Other applicationsCZEPOS - network of reference stations

Other applicationsCZEPOS - network of reference stations

Other applicationsCar navigation – Škoda-Auto

Navigation CD for the Czech Republic• third edition• 52% coverage of the CR• 92 000 km of roads• 11 900 points of interest (institutions, police

stations, hospitals, tank stations, …• supports Czech graphic and voice output

Other applicationsCar navigation – Škoda-auto

Other applicationsPrecision agriculture – Daňhel Ltd. Týn n. V.

Other applicationsPrecision agriculture – TOKO Luhačovice

Other applicationsEnvironmental protection • snow monitoring and

other activities in the National Park Giant Mountains

• investigation of fir-trees fertility in Beskydy mountains

• environment influence on– lichens– different flowers– …

Other applications

• Geomagnetics of the Earth– Institute of Rock Structure and Mechanics

of AS CR• determination of recent geodynamical

movements of selected geological structural blocks

• …

Other applications

• Archaeology

Other activities - productionOn board units

Conclusions 1/4

• In the Czech Republic, there is a sufficient knowledge concerning to the theory and possible practical applications of satellite navigation.

• However, advanced technologies or applications using satellite positioning are deployed very slowly.

• It is necessary to build up an infrastructure, intelligent transport systems, etc.

Conclusions 2/4

• The development of applications utilising the present satellite navigation systems (GPS and GLONASS) prepares the ground for the future systems or modernised ones. Many applications will require doubled/tripled systems, for example a combination of GPS, GLONASS and GALILEO.

Conclusions 3/4

• Even if the Czech Republic accepted the WGS system, we have an administrator of it, and our maps are harmonized with unit system of western countries we can see GPS users using incorrect map or reference system.

Conclusions 4/4

• A support from the EGNOS system or from regional reference stations is essential in many applications. It would be useful to build up a reference stations network covering Central Europe with differential corrections, similar to the US Nation-wide DGPS System.

• It is necessary to use and improve techniques enabling the processing of week satellite signals in very difficult conditions, as the AGPS is.

Thank you for your attention