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Advance Communication System - ( Class Notes )


Semester: 7th Branch: EEE/ EE

Subject: Advance Communication System Code: 325711 (25)
Total Theory Periods: 40 Total Tut Periods: 12
Total Marks in End Semester Exam: 80
Minimum number of Class tests to be conducted: Two

Unit – I: Pulse Analog & Digital Modulation:

Sampling theorem, Sampling of Low Pass and band pass signals, Aliasing, Aperture effect, PAM, PWM
and PPM generation and demodulation, TDM.
Pulse code modulation signal to quantization noise ratio, DPCM, DM and ADM.
Digital transmission through Career Modulation: Amplitude, Frequency and phase shift keying. Differential
phase shift keying, Matched Filter.

Unit – II: Microwave Communication:

Introduction to Microwave Communication, Microwave frequencies, Microwave devices and systems,
Microwave applications. Microwave waveguides and Cavities, phase velocity and group velocity in
waveguide. TE and TM modes in rectangular waveguides. Circular waveguides. Rectangular cavity
resonator. Circular cavity resonator, Q factor of a cavity resonator.

Unit – III: Fiber Optic Communication:

Introduction to Optical Fiber Communication. Communication systems applications in the electromagnetic
spectrum, elements of an optical fiber transmission link, Advantages of optical fiber communication. Optical
Fiber waveguides, Fiber Types, Ray theory transmission, Mode theory for circular waveguides, TE, TM and
Hybrid modes, Single-mode and multi-mode fibers. Fiber materials, Fiber fabrication, Attenuation in optical
fibers, Dispersion, Measurement of attenuation and dispersion. Optical Devices, LEDs and Laser Diodes-
Working principle, structures, characteristics, modulation PIN and APD-working principle, characteristics,
couplers, splices, connectors.

Unit – IV: Television Engineering:

Principles of television - image continuity - interlaced scanning - blanking - synchronizing -
video and sound signal modulation - channel bandwidth - vestigial sideband transmission -
VSB correction - positive and negative modulation - transmitter and receiver block diagrams

Unit – V: Radar Engineering:

Radar systems - radar frequencies - radar equation - radar transmitter and receiver (block
diagram approach) - continuous wave radar - frequency modulated CW radar - moving target
indicator radar - tracking radar

Text Books
Unit – I: Principles of Communication Systems, H.Taub and Schilling, TMH
Unit – II: Microwave Devices and Circuits by Samuel Y. Liao, 3rd Ed., Pearson Education
Unit – III: John M Senior- Optical Fiber Communications, Prentice Hall of India, 1985
Unit – IV: Gulati R.R., Modern Television Engineering, Wiley Eastern Ltd.
Unit – V: Microwave Radar and Navigational Aids by A.K. Sen and A.B. Bhattacharya, Khanna Publisher.
Reference Books:
1. Gred Keiser- Optical Fiber communications, McGraw Hill second edition, 1991
2. Bernard Grob & Charles E. Herndon, Basic Television and Video Systems, McGraw Hill
3. Introduction to Radar Systems, Skolnik, TMH
4. K. Sam Shanmugam, “Digital and Analog Communication Systems”, John Wiley & Sons

5. A Text Book of Analog & Digital Communication – P. Chakrabarti, Dhanpat Rai & Co.

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