B.TechSemester 52022-23Analog And Digital CommunicationKEE058

Analog And Digital Communication (KEE058) - AKTU Question Paper 2022-23

B.Tech · Semester 5 · Free PDF Download

This is the official AKTU Analog And Digital Communication Previous Year Question Paper for B.Tech Semester 5, academic session 2022-23. Published by Dr. A.P.J. Abdul Kalam Technical University (AKTU/UPTU), Lucknow. Free PDF download — no login required.

Course:B.Tech

Semester:Semester 5

Session:2022-23

University:AKTU / UPTU

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Questions Asked in 2022-23

Analog And Digital Communication (KEE058) — complete question paper

Section AAttempt all questions in brief. 2 x 10 = 20

a
Draw the block diagram of communication channel
b
Define modulation index in Amplitude modulation wave
c
How noise effect on the Amplitude modulation (AM) wave?
d
Define bandwidth in Angle modulated signal
e
Explain the nyquist criteria for sampling
f
Write the advantages of pulse amplitude modulation
g
Explain the types of digital modulation technique
h
Explain bit rate and bandwidth of FSK (i) Write the advantages of time division multiplexing. (j) Define entropy in information theory

Section BAttempt any three of the following: 10 x 3 = 30

a
Briefly explain about the Super‐heterodyne receiver and its advantages
b
What is frequency modulation? Expl ain mathematical representati on of frequency modulation
c
Explain generation and detection methods of pulse amplitude modulation
d
Draw the block diagram of BPSK t ransmitter. Explain balanced ri ng modulator of BPSK
e
Give brief introduction about time division multiplexing? Expla in synchronous and asynchronous TDM

Section CAttempt any one part of the following: 10 x 1 = 10

a
With the help of diagram explain generation and detection of SSB-SC wave
b
What is the basic concept of mu ltiplexing? Explain frequency di vision multiplexing (FDM) hierarchy system
a
Explain the generation of FM wav e using indirect method and slo p detectorfor demodulation
b
Drive the mathematical expression of wide band frequency modula tion using Bessel function
a
What is delta modulation? Explain working of adaptive delta modulation with proper block diagram
b
Explain the generation and demodulation of pulse width modulation (PWM)?
a
Explain briefly about the transmitter and receiver of FSK with neat and clean diagram
b
Discuss about the 8-bit QAM transmitter.For an 8bit-PSK system, operating with an information bit rate of 24kbps, determine (a) baud, (b) minimum bandwidth, and (c)bandwidth efficiency
a
What should be the desirable feature of a T1 carrier system? Ex plain PCM-TDM system
b
Design a binary Huffman code for a discrete source having seven independent symbols having probabilities 0.25, 0.25, 0.125, 0.125, 0.125, 0 .0625 and 0.0625 respectively. Also, calculate the efficiency of this code

Question text is extracted from the official AKTU question paper PDF above. Hindi translations are omitted — every question is printed in English in the original paper. Last verified: 2026-08-23.

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