Digital Signal Processing Properties Dft Online Exam Quiz
Digital Signal Processing Properties Dft GK Quiz. Question and Answers related to Digital Signal Processing Properties Dft. MCQ (Multiple Choice Questions with answers about Digital Signal Processing Properties Dft
What is the circular convolution of the sequences X1(n)={2,1,2,1} and x2(n)={1,2,3,4}?
Options
A : {14,14,16,16}
B : {16,16,14,14}
C : {2,3,6,4}
D : {14,16,14,16}
What is the circular convolution of the sequences X1(n)={2,1,2,1} and x2(n)={1,2,3,4}, find using the DFT and IDFT concepts?
Options
A : {16,16,14,14}
B : {14,16,14,16}
C : {14,14,16,16}
D : None of the mentioned
If X(k) is the N-point DFT of a sequence x(n), then circular time shift property is that N-point DFT of x((n-l))N is X(k)e-j2?kl/N.
Options
A : True
B : False
C :
D :
If x(n) and X(k) are an N-point DFT pair, then x(n+N)=x(n).
Options
A : True
B : False
C :
D :
If x(n) and X(k) are an N-point DFT pair, then X(k+N)=?
Options
A : X(-k)
B : -X(k)
C : X(k)
D : None of the mentioned
If X(k) is the N-point DFT of a sequence x(n), then what is the DFT of x*(n)?
Options
A : X(N-k)
B : X*(k)
C : X*(N-k)
D : None of the mentioned
If x(n) is a real sequence and X(k) is its N-point DFT, then which of the following is true?
Options
A : X(N-k)=X(-k)
B : X(N-k)=X*(k)
C : X(-k)=X*(k)
D : All of the mentioned
If X1(k) and X2(k) are the N-point DFTs of X1(n) and x2(n) respectively, then what is the N-point DFT of x(n)=ax1(n)+bx2(n)?
Options
A : X1(ak)+X2(bk)
B : aX1(k)+bX2(k)
C : eakX1(k)+ebkX2(k)
D : None of the mentioned
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