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Roll No.
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Total No. of Questions : 09
Total No. of Pages : 03
B.Tech.(Electronics Engg.) (2012 Onwards)
B.Tech.(ECE/ETE/Electronics & Computer Engg.) (2011 Onwards)
(Sem.-4)
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SIGNAL AND SYSTEMS
Subject Code : BTEC-402
M.Code: 57594
Time: 3 Hrs.
Max. Marks : 60
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INSTRUCTION TO CANDIDATES :
- SECTION-A is COMPULSORY consisting of TEN questions carrying TWO marks each.
- SECTION-B contains FIVE questions carrying FIVE marks each and students have to attempt any FOUR questions.
- SECTION-C contains THREE questions carrying TEN marks each and students have to attempt any TWO questions.
SECTION-A
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Q1. Answer briefly :
a) Differentiate between continuous time and discrete time systems.
b) Determine whether the system is linear or non-linear y(n) = x(n²).
c) State Parseval's relation for discrete-time aperiodic signals.
d) Give the significance of ROC in Z-transform.
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e) Determine the Nyquist sampling rate and Nyquist sampling interval for the signal x(t) = sin c² (200pt)
f) What is the necessary and sufficient condition on impulse response for stability of a causal LTI system?
g) What do you mean by statistical independence?
h) What are the Dirichlet's conditions of Fourier series?
i) How can you classify Random processes?
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j) List two properties of DTFT.
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SECTION-B
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Q2. Find the trigonometric Fourier series for the periodic signal shown
x(t)
This download link is referred from the post: PTU M.Tech 2nd Semester Last 10 Years 2010-2020 Previous Question Papers|| Punjab Technical University
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