Thapar University 2007 B.E SIGNAL AND SYSTEM - Question Paper

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THAPAR UNIVERSITY PATIALA
ELECTRONICS AND COMMUNICATION ENGINEERING DEARTMENT

Thapar University Department of ECE

Class :-ECE & El Subjectt-Signals and Systems Code :-EC003

Time :-1 hr MM:30 AH questions are compulsory._

Q1. Find the power and energy of the following signals 6

a) e-*'¹ b) e^a' .u(-t)

Q2. Derive the relation for the coefficients of the exponential and 8

trigonometric Fourier series.

Q3. Find the convolution of the following 3

x(n)={0,2,3,4,l,l} h(n)={l,1,1,2,3,-1}

Q4. Write different conditions for a system to be 4

aJCausal b) Stable c) Linear d) Time invariant

Q6. Derive the following properties of Fourier Transform 9

a) Duality

b) Integration

c) Differentiation

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Earning: Approval pending.