Digital Signal Processing Questions and Answers | Digital Signal Processing MCQs

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

2 What is the configuration of system for digital processing of an analog signal?

3 In DM, further the two integrators at encode are replaced by one integrator placed before comparator, and then such system is called?

4 If the input analog signal is within the range of the quantizer, the quantization error e_q (n) is bounded in magnitude i.e., |e_q (n)| < Δ/2 and the resulting error is called?

5 If the input analog signal falls outside the range of the quantizer (clipping), eq (n) becomes unbounded and results in _____________

6 In the mathematical model for the quantization error e_q (n), to carry out the analysis, what are the assumptions made about the statistical properties of e_q (n)? i. The error e_q (n) is uniformly distributed over the range — Δ/2 < e_q (n) < Δ/2.
ii. The error sequence is a stationary white noise sequence. In other words, the error e_q (m) and the error e_q (n) for m≠n are uncorrelated.
iii. The error sequence {e_q (n)} is uncorrelated with the signal sequence x(n).
iv. The signal sequence x(n) is zero mean and stationary.

7 What is the abbreviation of SQNR?

8 What is the scale used for the measurement of SQNR?

9 In IIR Filter design by the Bilinear Transformation, the Bilinear Transformation is a mapping from

10 In Bilinear Transformation, aliasing of frequency components is been avoided.