Explore topic-wise MCQs in Digital Signal Processing.

This section includes 8 Mcqs, each offering curated multiple-choice questions to sharpen your Digital Signal Processing knowledge and support exam preparation. Choose a topic below to get started.

1.

When the desired frequency response characteristic of the FIR filter is narrowband, most of the gain parameters {H(k+ )} are zero.

A. True
B. False
Answer» B. False
Discussion
2.

Where does the poles of the system function of the second filter locate?

A. e<sup>j2 (k+ )M</sup>
B. e<sup>j2 (k+ )/M</sup>
C. e<sup>j2 (k- )/M</sup>
D. e<sup>j (k+ )/M</sup>
Answer» C. e<sup>j2 (k- )/M</sup>
Discussion
3.

What is the system function of the second filter other than comb filter in the realization of FIR filter?

A. ( sum_{k=0}^M frac{H(k+ )}{1-e^{ frac{j2 (k+ )}{M}} z^{-1}} )
B. ( sum_{k=0}^{M-1} frac{H(k+ )}{1+e^{ frac{j2 (k+ )}{M}} z^{-1}} )
C. ( sum_{k=0}^{M-1} frac{H(k+ )}{1-e^{ frac{j2 (k+ )}{M}} z^{-1}} )
D. None of the mentioned
Answer» D. None of the mentioned
Discussion
4.

The zeros of the system function of comb filter are located at ______________

A. Inside unit circle
B. On unit circle
C. Outside unit circle
D. None of the mentioned
Answer» C. Outside unit circle
Discussion
5.

What is the system function of all-zero filter or comb filter?

A. ( frac{1}{M}(1+z^{-M} e^{j2 }) )
B. ( frac{1}{M}(1+z^M e^{j2 }) )
C. ( frac{1}{M}(1-z^M e^{j2 }) )
D. ( frac{1}{M}(1-z^{-M} e^{j2 }) )
Answer» E.
Discussion
6.

The realization of FIR filter by frequency sampling realization can be viewed as cascade of how many filters?

A. Two
B. Three
C. Four
D. None of the mentioned
Answer» B. Three
Discussion
7.

What is the general system function of an FIR system?

A. ( sum_{k=0}^{M-1}b_k x(n-k) )
B. ( sum_{k=0}^M b_k z^{-k} )
C. ( sum_{k=0}^{M-1}b_k z^{-k} )
D. None of the mentioned
Answer» D. None of the mentioned
Discussion
8.

In general, an FIR system is described by the difference equation y(n)= ( sum_{k=0}^{M-1}b_k x(n-k) ).

A. True
B. False
Answer» B. False
Discussion