Digital Signal Processing Questions and Answers | Digital Signal Processing MCQs

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Questions
1 The absolute error between the desired response ω and the approximation Hr(ω) decreases as ω varies from 0 to 2πfp.
A True
B False

Answer:False
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
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3 In this section, we confine our attention to FIR designs in which h(n)=h(M-1-n).
A True
B False

Answer:False
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

Answer:0.45
5 What kind of filter is an ideal Hilbert transformer?
A Low pass
B High pass
C Band pass
D All pass

Answer:All pass
6 How much phase shift does an Hilbert transformer impart on the input?
A 45°
B 90°
C 135°
D 180°

Answer:90°
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

Answer:Anti-symmetric
9 Which of the following is true regarding the frequency response of Hilbert transform?
A Complex
B Purely imaginary
C Purely real
D Zero

Answer:Purely imaginary
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

Answer:0

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