Electrical & Electronics Engineering, VI-Semester Open Elective EX- 604 (C) Analog & Digital Communication

 RAJIV GANDHI PROUDYOGIKI VISHWAVIDYALAYA, BHOPAL

New Scheme Based On AICTE Flexible Curricula

Electrical & Electronics Engineering, VI-Semester

 Open Elective EX- 604 (C) Analog & Digital Communication


UNIT-I

👉👉👉 Time domain and frequency domain representation of signal, Fourier Transform and its 

properties, Transform of Gate, Periodic gate, Impulse periodic impulse sine and cosine wave, 

Concept of energy density and power density (Parseval’s theorem), Power density of periodic 

gate and impulse function, impulse response of a system, convolutions, convolution with 

impulse function, causal and non causal system impulse response of ideal low pass filter, 

Correlation & Auto correlation.

UNIT-II

Base band signal, need of modulation, Introduction of modulations techniques, Amplitude 

modulation, Equation and its frequency domain representation, Bandwidth, Power 

distribution. AM suppressed carrier waveform equation and frequency domain representation 

Generation (Balance/Chopper modulator) and synchronous detection technique, errors in 

synchronous detection, Introduction to SSB and VSB Transmission Angle modulation, 

Frequency and phase modulation equation and their relative phase and frequency deviations, 

modulation index frequency spectrum, NBFM and WBFM, Bandwidth comparison of 

modulation techniques.

UNIT-III

Sampling of signal, sampling theorem for low pass and Band pass signal, Pulse amplitude 

modulation (PAM), Time division, multiplexing (TDM). Channel Bandwidth for PAM-TDM 

signal Type of sampling instantaneous, Natural and flat top, Aperture effect, Introduction to 

pulse position and pulse duration modulations, Digital signal, Quantization, Quantization 

error, Pulse code modulation, signal to noise ratio, Companding, Data rate and Baud rate, Bit 

rate, multiplexed PCM signal, Differential PCM (DPCM), Delta Modulation (DM) and 

Adaptive Delta Modulation (ADM), comparison of various systems.

UNIT-IV

Digital modulations techniques, Generation, detection, equation and Bandwidth of amplitude 

shift keying (ASK) Binary Phase Shift keying (BPSK), Differential phase shift keying 

(DPSK), offset and non offset quadrature phase shift keying (QPSK), M-Ary PSK, Binary 

frequency Shift Keying (BFSK), M-Ary FSK Quadrature Amplitude modulation (QAM), 

MODEM, Introduction to probability of error.

UNIT-V

Information theory and coding- Information, entropies (Marginal and conditional), Model of 

a communication system, Mathematical representation of source, channel and receiver 

characteristics, Mutual information, channel capacity efficiency of noise free channel Binary 

symmetric channel (BSC) Binary erasure channel (BEC), Repetition of signal, NM 

symmetric Binary channel, Shannon theorem, Shanon-Hartley theorem (S/N-BW trade 

off)Source encoding code properties; Shanon, Fano and Huffman coding methods and their 

efficiency error control coding, Minimum Hamming distance, Linear Block Code, Cyclic 

code and convolution codes. Line Encoding: Manchester coding, RZ, NRZ coding

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