Explore topic-wise MCQs in Digital Signal Processing.

This section includes 9 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.

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» C. Poles & Zeros
2.

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» B. Equalize
3.

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» C.
4.

Which of the following is the expression for ( frac{ p_i}{ a_k} )?

A. ( frac{-p_i^{N+k}}{ prod_{l=1}^n p_i-p_l} )
B. ( frac{p_i^{N-k}}{ prod_{l=1}^n p_i-p_l} )
C. ( frac{-p_i^{N-k}}{ prod_{l=1}^n p_i-p_l} )
D. None of the mentioned
Answer» D. None of the mentioned
5.

What is the expression for the perturbation error pi?

A. ( sum_{k=1}^N frac{ p_i}{ a_k} Delta a_k )
B. ( sum_{k=1}^N p_i Delta a_k )
C. ( sum_{k=1}^N Delta a_k )
D. None of the mentioned
Answer» B. ( sum_{k=1}^N p_i Delta a_k )
6.

If pk is the set of poles of H(z), then what is pk that is the error resulting from the quantization of filter coefficients?

A. Pre-turbation
B. Perturbation
C. Turbation
D. None of the mentioned
Answer» C. Turbation
7.

Which of the following is the equivalent representation of the denominator of the system function of a general IIR filter?

A. ( prod_{k=1}^N (1+p_k z^{-1}) )
B. ( prod_{k=1}^N (1+p_k z^{-k}) )
C. ( prod_{k=1}^N (1-p_k z^{-k}) )
D. ( prod_{k=1}^N (1-p_k z^{-1}) )
Answer» E.
8.

If ak is the filter coefficient and āk represents the quantized coefficient with ak as the quantization error, then which of the following equation is true?

A. &amp;amacr;k = a<sub>k</sub>. a<sub>k</sub>
B. &amp;amacr;k = a<sub>k</sub>/ a<sub>k</sub>
C. &amp;amacr;k = a<sub>k</sub> + a<sub>k</sub>
D. None of the mentioned
Answer» D. None of the mentioned
9.

The system function of a general IIR filter is given as H(z)= ( frac{ sum_{k=0}^M b_k z^{-k}}{1+ sum_{k=1}^N a_k z^{-k}} ).

A. True
B. False
Answer» B. False