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Digital Signal Processing Questions and Answers | Digital Signal Processing MCQs

Free download in PDF Digital Signal Processing Multiple Choice Questions and Answers for competitive exams. These short objective type questions with answers are very important for Board exams as well as competitive exams like UPSC, NDA, SSC etc. These short solved questions or quizzes are provided by Gkseries./p>

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(1) If the filter has symmetric unit sample response with M odd, then what is the value of Q(ω)?
[A] cos(ω/2)
[B] sin(ω/2)
[C] 1
[D] sinω
Answer: 1
(2) If the filter has anti-symmetric unit sample response with M odd, then what is the value of Q(ω)?
[A] cos(ω/2)
[B] sin(ω/2)
[C] 1
[D] sinω
Answer: sinω
(3) In which of the following way the real valued desired frequency response is defined?
[A] Unity in stop band and zero in pass band
[B] Unity in both pass and stop bands
[C] Unity in pass band and zero in stop band
[D] Zero in both stop and pass band
Answer: Unity in pass band and zero in stop band
(4) The error function E(ω) should exhibit at least how many extremal frequencies in S?
[A] L
[B] L-1
[C] L+1
[D] L+2
Answer: L+2
(5) The filter designs that contain maximum number of alternations are called as ______________
[A] Extra ripple filters
[B] Maximal ripple filters
[C] Equi ripple filters
[D] None of the mentioned
Answer: Maximal ripple filters
(6) Remez exchange algorithm is an iterative algorithm used in error approximation.
[A] True
[B] False
Answer: True
(7) When |E(ω)|≤δ for all frequencies on the dense set, the optimal solution has been found in terms of the polynomial H(ω).
[A] True
[B] False
Answer: True
(8) In Parks-McClellan program, an array of maximum size 10 that specifies the weight function in each band is denoted by?
[A] WTX
[B] FX
[C] EDGE
[D] None of the mentioned
Answer: WTX
(9) The filter designs which are formulated using chebyshev approximating problem have ripples in?
[A] Pass band
[B] Stop band
[C] Pass & Stop band
[D] Restart band
Answer: Pass & Stop band
(10) If the filter has symmetric unit sample response with M even, then what is the value of Q(ω)?
[A] cos(ω/2)
[B] sin(ω/2)
[C] 1
[D] sinω
Answer: cos(ω/2)
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