B.TechSemester 42022-23Signal SystemKEC-403

Signal System (KEC-403) - AKTU Question Paper 2022-23

B.Tech · Semester 4 · Free PDF Download

This is the official AKTU Signal System Previous Year Question Paper for B.Tech Semester 4, 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 4

Session:2022-23

University:AKTU / UPTU

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Questions Asked in 2022-23

Signal System (KEC-403) — complete question paper

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

a
Determine whether it is energy or power signal =
b
Find even and odd component of the following signal =1+2+3 +
c
What is the difference between cross correlation and auto correlation?
d
Determine the initial value for the given laplace transform
e
What is the significance of ROC
f
Write time shifting property of Laplace transform
g
What is the condition of z transform to exist
h
Draw ROC of two sided sequence in z transform (i) What is meant by anti -aliasing filter (j) Find sampling frequency of signal: 2 Cos (2 π x 10 3t) Cos (4π x 10 3t)

Section BAttempt any three of the following: 10x3=30

a
Check whether the given system is Static, Linear, C ausal and Time invariant system or not = + −4
b
Consider a causal LTI system with frequency respons e = .For a particular input x(t) the system is observed to produce the output = − .Find the input x(t)
c
Find the Fourier transform of a signal =
d
Find the Z- transform and ROC of X(z) for
e
State and prove sampling theorem

Section CAttempt any one part of the following: 10x1=10

a
Sketch the following signal
b
Check whether the following digital systems are BIBO stable or not
a
Find the convolution of the following signal by graphical method
b
Using Fourier transform, find the convolution of the signals
a
Determine the exponential fourier series for the waveform shown
b
Find the Fourier transform of the signal = | |."
a
Find inverse Z -Transform of
b
A causal LTI system is described by the difference equation Find the system function and frequency response of the system. Plot the poles and zeroes and indicate ROC.Also determine the stability and impulse response of the system
a
Solve y[k+2]+ 5y[k+1]+ 6y[k] = 3f [k+1] + 5f[k] If the initial conditions are y[-1] =11/6, y[-2] = 37/36 and the input f [k] = 2 -k V[k] and indicate zero input and zero state component in the out put y[k]
b
Determine the Nyquist sampling rate and Nyquist sampling interval for

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.

Repeated Questions — KEC-403

Questions that appeared in more than one session, found by comparing 2 years of Signal System papers (2021-22, 2022-23)

Check whether the given system is Static, Linear, C ausal and Time invariant system or not = + −4

Appeared in: 2021-22 · 2022-23

Using Fourier transform, find the convolution of the signals

Appeared in: 2021-22 · 2022-23

Signal System — Other Year Papers

AKTU Signal System PYQs from other sessions

Signal System2021-22 Signal System2023-24 Signal System2024-25 Signal System2025-26

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