TEC 405 ANALOG COMMUNICATION


1. Unit-I
Introduction: Overview of Communication system, Communication channels Need for modulation, Baseband and Pass band signals,Amplitude Modulation, Double side band with Carrier (DSB-C),Double side band without Carrier, Single Side Band Modulation, DSBSC,DSB-C, SSB Modulators and Demodulators, Vestigial Side Band(VSB), Quadrature Amplitude Modulator9

2. Unit-II
Amplitude Modulation: Frequency division and time division multiplexing suppressed carrier systems, single side band transmission,amplitude modulation with carrier, power, effect of frequency and phase errors in synchronous detection, comparison of various AM systems, vestigial band transmission.

3. Unit-III
Angle Modulation: Angle Modulation, Tone Modulated FM Signal,Arbitrary Modulated FM Signal, FM Modulators and Demodulators,Approximately Compatible SSB Systems, Stereophonic FM Broadcasting, Examples Based on Mat Lab.9

4. Unit-IV
Pulse Modulation Digital Transmission of Analog Signals : Sampling Theorem and its applications, Pulse Amplitude Modulation(PAM), Pulse Width Modulation, and Pulse Position Modulation. Their generation and Demodulation, Digital Representation of Analog Signals, Pulse Code Modulation (PCM), PCM System, Issues in digital transmission : Frequency Division Multiplexing, Time Division Multiplexing ,Line Coding and their Power Spectral density, T1 Digital System, TDM Hierarchy

5. Unit-V