Study videos of Analog Communications

Download/Source url :

http://www.youtube.com/watch?v=vEQK_knNvKc&feature=player_embedded

By Prof.Surendra Prasad, Department of Electrical Engineering ,IIT Delhi.

ANALOG COMMUNICATIONS SYLLABUS :

Source :http://jntuk.edu.in

UNIT I

INTRODUCTION : Introduction to communication system, Need for modulation, Frequency Division

Multiplexing , Amplitude Modulation, Definition, Time domain and frequency domain description, single tone

modulation, power relations in AM waves, Generation of AM waves, square law Modulator, Switching

modulator, Detection of AM Waves; Square law detector, Envelope detector.

UNIT II

DSB MODULATION : Double side band suppressed carrier modulators, time domain and frequency domain

description, Generation of DSBSC Waves, Balanced Modulators, Ring Modulator, Coherent detection of DSBSC

Modulated waves, COSTAS Loop.

UNIT III

SSB MODULATION : Frequency domain description, Frequency discrimination method for generation of AM

SSB Modulated Wave, Time domain description, Phase discrimination method for generating AM SSB

Modulated waves. Demodulation of SSB Waves, Vestigial side band modulation: Frequency description,

Generation of VSB Modulated wave, Time domain description, Envelope detection of a VSB Wave pulse

Carrier, Comparison of AM Techniques, Applications of different AM Systems.

UNIT IV

ANGLE MODULATION : Basic concepts, Frequency Modulation: Single tone frequency modulation, Spectrum

Analysis of Sinusoidal FM Wave, Narrow band FM, Wide band FM, Constant Average Power, Transmission

bandwidth of FM Wave - Generation of FM Waves, Direct FM, Detection of FM Waves: Balanced Frequency

discriminator, Zero crossing detector, Phase locked loop, Comparison of FM & AM.

UNIT V

NOISE : Noise in Analog communication System, Noise in DSB& SSB System Noise in AM System, Noise in

Angle Modulation System, Threshold effect in Angle Modulation System, Pre-emphasis & de-emphasis

UNIT VI

TRANSMITTERS : Radio Transmitter - Classification of Transmitter, AM Transmitter, Effect of feed back on

performance of AM Transmitter, FM Transmitter – Variable reactance type and phase modulated FM

Transmitter, frequency stability in FM Transmitter.

UNIT VII

RECEIVERS : Radio Receiver - Receiver Types - Tuned radio frequency receiver, Superhetrodyne receiver,

RF section and Characteristics - Frequency changing and tracking, Intermediate frequency, AGC, FM

Receiver, Comparison with AM Receiver, Amplitude limiting.

UNIT VIII

PULSE MODULATION : Time Divison Multiplexing, Types of Pulse modulation, PAM (Single polarity, double

polarity) PWM: Generation & demodulation of PWM, PPM, Generation and demodulation of PPM

TEXTBOOKS :

1. Principles of Communication Systems – H Taub & D. Schilling, Gautam Sahe, TMH, 2007 3rd Edition.

2. Communication Systems – B.P. Lathi, BS Publication, 2006.

REFERENCES :

1. Principles of Communication Systems - Simon Haykin, John Wiley, 2nd Ed.,.

2. Electronics & Communication System – George Kennedy and Bernard Davis, TMH 2004.

3. Communication Systems Second Edition – R.P. Singh, SP Sapre, TMH, 2007.

4. Fundamentals of Communication Systems - John G. Proakis, Masond, Salehi PEA, 2006.

9:35 AM