Book Details

Analog Communications

Analog Communications

Published by uLektz

Course Code:R162204

Author:uLektz

University: JNTU Kakinada

Regulation:2016

Categories:Electronics & Communication

Format : ico_bookePUB3 (DRM Protected)

Type :eBook

Rs.295 Rs.207 Rs.30% off

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Description :Analog Communications of R162204 covers the latest syllabus prescribed by JNTU Kakinada for regulation 2016. Author: uLektz, Published by uLektz Learning Solutions Private Limited.

Note : No printed book. Only ebook. Access eBook using uLektz apps for Android, iOS and Windows Desktop PC.

Topics
UNIT I AMPLITUDE MODULATION

1.1 Introduction to communication system - Need for modulation, Frequency Division Multiplexing

1.2 Amplitude Modulation, Definition, Time domain and frequency domain description - Single tone modulation, Power relations in AM waves, Generation of AM waves

1.3 Square law Modulator, Switching modulator

1.4 Detection of AM Waves; Square law detector, Envelope detector

UNIT II DSB & SSB MODULATION

2.1 Double side band suppressed carrier modulators, time domain and frequency domain description, Generation of DSBSC Waves - Balanced Modulators Ring Modulator, Coherent detection of DSB-SC Modulated waves

2.2 COSTAS Loop: 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

2.3 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 III ANGLE MODULATION

3.1 Basic concepts, Frequency Modulation, Single tone frequency modulation - Spectrum Analysis of Sinusoidal FM Wave, Narrow band FM, Wide band FM, Constant Average Power

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

3.3 Zero crossing detector - Phase locked loop, Comparison of FM & AM

UNIT IV TRANSMITTERS & RECEIVERS

4.1 Radio Transmitter - Classification of Transmitter - AM Transmitter, Effect of feedback on performance of AM Transmitter

4.2 FM Transmitter - Variable reactance type and phase modulated FM Transmitter - Frequency stability in FM Transmitter

4.3 Radio Receiver - Receiver Types - Tuned radio frequency receiver, Superhetrodyne receiver

4.4 RF section and Characteristics - Frequency changing and tracking, Intermediate frequency, AGC, Amplitude limiting

4.5 FM Receiver, Comparison with AM Receiver - Communication Receivers, Extensions of superheterodyne principle and additional circuits

UNIT V NOISE

5.1 Review of noise and noise sources, noise figure - Noise in Analog communication Systems

5.2 Noise in DSB& SSB System - Noise in AM System, Noise in Angle Modulation Systems

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

UNIT VI PULSE MODULATION

6.1 Time Division Multiplexing, Types of Pulse modulation - PAM (Single polarity, double polarity)

6.2 PWM: Generation & demodulation of PWM

6.3 PPM, Generation and demodulation of PPM- TDM Vs FDM

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