Deemed University 2009 A.M.I.E.T.E Electronics & Communication Engineering SIGNALS & SYSTEMS – ET/CS/IT (OLD SCHEME) in ELECTRONICS & COMM ENGG - Question Paper

AMIETE – ET/CS/IT (OLD SCHEME)

Code: AE06/ AC04/ AT04 Subject: SIGNALS & SYSTEMS
Time: three Hours Max. Marks: 100

NOTE: There are nine ques. in all.
· ques. one is compulsory and carries 20 marks. ans to Q. 1. must be written in the space given for it in the ans book supplied and nowhere else.
· Out of the remaining 8 ques. ans any 5 ques.. every ques. carries 16 marks.
· Any needed data not explicitly given, may be suitably presumed and said.


Q.1 select the accurate or the best option in the following: (210)

a. The Fourier transform of

(A) (B)
(C) (D)

b. Consider a continuous-time system with input x(t) and output y(t) related by . The system is

(A) Linear (B) Causal
(C) Non-linear (D) Non-causal

c. The formula is also called as

(A) Superposition integral (B) Continuous integral
(C) Time integral (D) None of the above

d. According to time shifting property of Fourier transform, is equal to

(A) (B)
(C) (D)

e. Parsevals relation for a periodic signals equal to

(A) (B)
(C) (D) None of the above

f. The discrete fourier transform of is equal to

(A) (B)
(C) (D)

g. An ideal low pass filter is

(A) Causal (B) Non-causal
(C) Inverse causal (D) None

h. If with ROC=R, then Laplace transform of is equal to

(A) (B)
(C) (D)

Earning:   Approval pending.