Download DBATU B.Tech 2019 March 4th Semester Signals and Systems Question Paper

Download DBATU (Dr. Babasaheb Ambedkar Technological University) B Tech 2019 March (Bachelor of Technology) 4th Semester Signals and Systems Question Paper

Mid Scm xstcr Examination ? Mar 2019
DR. BA MSAHEB AMBE?S-{AR TECHNOLOGICAL UNIVERSITY, LONERE _
: Course: B- Tec?x in S.Y. (ECT) ' Seth: IV _
Subject Name: Signals and Systems Subject Code: BTEXC404 ?
Max Marks: 2%? Dale:? {4/0312019 Duration:- 1 Hr.
Instructions to the Students:
1. Check question paper correct at not
2. Draw net and labeled signals?
? (A) Cosine (B) sine (C) Square (D) any
.Co Marks
level
Q. 1 Attempt fol?uwing questions i 6
1 mummy: ma): {0,3,53,63,63} , x(2) = ?? 1
7f
(AX) (B33 (C38 (D3 6 .
2 If message is an analog signal than tmnsmilter perform?-?- opemtions to 00an it to digital 1
form *
(A)Sampling (B)Quantizzation (C)Encoding (D)All of these
3 For continuous time signal x(t) = x(H T0) is condition of ??? l ?
(A) Pcriodicix y (B) Linem?ity (C) continuity (D) Non-pcriodicity
4 Impulse response is the response of the system, when applied input is ?? 1
(A) u(n) (B) 5 (n) (C) I(n) (D) DC. signal
5 In Line Spectra 15112156 angle is always measure with respcct to ??-?- wavcs 3
6 _ The discrete time describe by y(n)= 5'1}: x(n) is? >
(A) Shift variam (B) Time variant (C) Time invariant (D) None of the above
If..?
Q.2 Solve Any Two ?,1th following.
3X2
_ (A)
Find whether the following signal are periodic ,if yes ?nd periodicxty
X(t)'=2 cos 1'1t+7 cos t
(B) Determine whether the system is 1)Linczu' 2) causal 3) time invariant y(t)= cos x(t)
(C) ComputethCYO?hvolution sum {iz?crc x(n)={l 1010} ,h(n)={1 -2 ?3 4}
T T '
Q. 3 ? Solve Any 0 ac of the following.
__,__.?____'_,___.__???? ?
(A) Perform the convolution operation between two function in time domam x1(t) = u(t) and
x?.(t)=e~t
(B) Find whether the following signal is energy or power signal and ?nd the value
X(t)= 6"? u(t)
______?_?? __,_-___?___._???_'.?._m
. . *9?: End *id:
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