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AI010 405
SIGNAL COMMUNICATION
Credits:
4
3+1+0Objectives:Familiarize the students with theoretical
aspects of signal communication.
Generate awareness in students about practical issues.Gie the
students an application sense.
Module 1
!n oeriew of electronic communication s"stems: bloc# diagram of
communications"stem$ analogue ersus digital$ modulation
multiple%ing.
&asic concepts of signals: signal$ signal
characteristics.
&asic concepts of telemetr": signal transmission oer wires
using oltage$ current and
fre'uenc" ( issues related to long distance transmission: signal
attenuation$ phase dela"s( need for wireless telemetr" ( t"pes of
modulations used )onl" introduction$ details in
another module*.
Module 2
&asic concepts of noise:$ noise$ noise spectrum$ noise
figure and noise temperature
&andwidth re'uirements$ effect of limiting bandwidth signal
attenuation andtransmission distance considerations of filter
selection for suppression of noise:
bandwidth$ amplitude response$ phase response.
,mi and related issues: grounding ( shielding ( twisted pair (
twisted shielded pair -ground loop ( guarding techni'ues.
Module 3
ntroduction to digital communication: components of digital
transmission s"stem (
adantages of digital transmission ( analogue and discrete
sinusoids ( !/ conersion (
sampling ( sampling theorem- sampling in practical situations
inoling a range offre'uencies and noise ( aliasing error - filter
order to minimize aliasing error - /!
conersion ( channel capacit" ulse 2odulation concept and basic
scheme: !2$
2$ 2$ C2$ elta modulation.
F2 and telemetr"- G standards for telemetr".
Module 4
ntroduction to fibre optic communication: 5ight propagation in
glass fibres opticalcommunication s"stem: s"stem components$
transmitters ( fibre channel ( light
detectors transmitter concepts: sources$ optical switches$
modulation
optical fibres: step inde% fibre$ graded inde% fibre$ single
mode and multi mode fibres -fibre power loss terms channel
multiple%ing: 62$ F2: modulation formats optical
receiers: detectors$ optical isolators.
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Module 5
ntroduction to satellite communication: basic concepts:
satellite orbits$ bloc# diagram ofsatellite communication s"stem$
transponders$ up lin#ing$ down lin#ing$ satellite s"stem
parameters$ satellite s"stem lin# e'uation and lin# budget$
fre'uenc" bands for satellite
communication.
eferences:
1. a"ne 6omasi$ !danced ,lectronic Communication 7"stems$ 8.
9. 6$ Communication 7"stem$ 8.3. ;.. 8ari &hatt$ !nalogue
Communication$ 7anguine 6echnical ublishers.
4. Gautam 7aha$ rinciples of Communication 7"stem$ 6ata 2cGraw
8ill.
