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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) What is the kind of relationship between Ω and ω?
[A] Many-to-one
[B] One-to-many
[C] One-to-one
[D] Many-to-many
Answer: One-to-one
(2) If ak is the filter coefficient and āk represents the quantized coefficient with Δak as the quantization error, then which of the following equation is true?
[A] āk = ak.Δak
[B] āk = ak/Δak
[C] āk = ak + Δak
[D] None of the mentioned
Answer: āk = ak + Δak
(3) If pk is the set of poles of H(z), then what is Δpk that is the error resulting from the quantization of filter coefficients?
[A] Pre-turbation
[B] Perturbation
[C] Turbation
[D] None of the mentioned
Answer: Perturbation
(4) If the poles are tightly clustered as they are in a narrow band filter, the lengths of |pi-pl| are large for the poles in the vicinity of pi.
[A] True
[B] False
Answer: False
(5) Which of the following operation has to be done on the lengths of |pi-pl| in order to reduce the perturbation errors?
[A] Maximize
[B] Equalize
[C] Minimize
[D] None of the mentioned
Answer: Maximize
(6) The sensitivity analysis made on the poles of a system results on which of the following of the IIR filters?
[A] Poles
[B] Zeros
[C] Poles & Zeros
[D] None of the mentioned
Answer: Zeros
(7) The quantization inherent in the finite precision arithmetic operations render the system linear.
[A] True
[B] False
Answer: False
(8) In recursive systems, which of the following is caused because of the nonlinearities due to the finite-precision arithmetic operations?
[A] Periodic oscillations in the input
[B] Non-Periodic oscillations in the input
[C] Non-Periodic oscillations in the output
[D] Periodic oscillations in the output
Answer: Periodic oscillations in the output
(9) The oscillations in the output of the recursive system are called as ‘limit cycles’.
[A] True
[B] False
Answer: True
(10) Limit cycles in the recursive are directly attributable to which of the following?
[A] Round-off errors in multiplication
[B] Overflow errors in addition
[C] Both of the mentioned
[D] None of the mentioned
Answer: Both of the mentioned
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