Explore topic-wise MCQs in Digital Signal Processing.

This section includes 5 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 in-band quantization noise variance is given as?

A. ( sigma_n^2= int_{-B}^B |H_n (F)|^3 S_e (F)dF )
B. ( sigma_n^2= int_{-B}^B |H_n (F)|^2 S_e (F)dF )
C. ( sigma_n^2= int_{-B}^B |H_n (F)|^1 S_e (F)dF )
D. None
Answer» C. ( sigma_n^2= int_{-B}^B |H_n (F)|^1 S_e (F)dF )
Discussion
2.

9.The performance of the SDM system is determined by the noise system function Hn(z), which has a magnitude of?

A. (|H_n (z)|=2 |sin u2061 frac{ F}{F_s}| )
B. (|H_n (z)|=4 |sin u2061 frac{ F}{F_s}| )
C. (|H_n (z)|=3 |sin u2061 frac{ F}{F_s}| )
D. (|H_n (z)|= |sin u2061 frac{ F}{F_s}| )
Answer» B. (|H_n (z)|=4 |sin u2061 frac{ F}{F_s}| )
Discussion
3.

What is the z-transform of sequence {dq(n)} i.e., Dq(z)= ?

A. (H_s (z)X(z)- H_n (z)E(z) )
B. (H_s (z)X(z)+ H_n (z)E(z) )
C. (H_s (n)X(z)+ H_n (n)E(z) )
D. (H_n (z)X(z)- H_s (z)E(z) )
Answer» C. (H_s (n)X(z)+ H_n (n)E(z) )
Discussion
4.

What is the system function of the integrator that is modeled by the discrete time system?

A. H(z)= ( frac{z^{-1}}{1-z^{-1}} )
B. H(z)= ( frac{z^{-1}}{1+z^{-1}} )
C. H(z)= ( frac{z^{z^1}}{1-z^1} )
D. H(z)= ( frac{z^{z^1}}{1+z^1} )
Answer» B. H(z)= ( frac{z^{-1}}{1+z^{-1}} )
Discussion
5.

The selection of the sampling rate Fs=1/T, where T is the sampling interval, not only determines the highest frequency (Fs/2) that is preserved in the analog signal but also serves as a scale factor that influences the design specifications for digital filters.

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