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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>
(1)
The absolute error between the desired response ω and the approximation Hr(ω) decreases as ω varies from 0 to 2πfp.
(2)
Which of the following is the important parameter in a differentiator?
[A]
Length
[B]
Bandwidth
[C]
Peak relative error
[D]
All of the mentioned
Answer: All of the mentioned
(3)
In this section, we confine our attention to FIR designs in which h(n)=h(M-1-n).
(4)
What is the maximum value of fp with which good designs are obtained for M odd?
[A]
0.25
[B]
0.45
[C]
0.5
[D]
0.75
(5)
What kind of filter is an ideal Hilbert transformer?
[A]
Low pass
[B]
High pass
[C]
Band pass
[D]
All pass
(6)
How much phase shift does an Hilbert transformer impart on the input?
[A]
45°
[B]
90°
[C]
135°
[D]
180°
(7)
In which of the following fields, Hilbert transformers are frequently used?
[A]
Generation of SSB signals
[B]
Radar signal processing
[C]
Speech signal processing
[D]
All of the mentioned
Answer: All of the mentioned
(8)
The unit sample response of Hilbert transform is _______________
[A]
Zero
[B]
Symmetric
[C]
Anti-symmetric
[D]
None of the mentioned
(9)
Which of the following is true regarding the frequency response of Hilbert transform?
[A]
Complex
[B]
Purely imaginary
[C]
Purely real
[D]
Zero
(10)
What is the value of unit sample response of an ideal Hilbert transform for ‘n’ even?
[A]
-1
[B]
1
[C]
0
[D]
None of the mentioned
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