Digital Signal Processing Questions and Answers
Q1.
Divide-and-conquer approach is based on the decomposition of an N-point DFT into successively smaller DFTs. This basic approach leads to FFT algorithms.
Answer :
True
Q2.
In the Bilinear Transformation mapping, which of the following are correct?
Answer :
All points in the LHP & RHP of s are mapped inside & outside the unit circle in the z-plane
Q3.
Which of the following is the disadvantage of sampling rate conversion by converting the signal into analog signal?
Answer :
Signal distortion & Quantization effects
Q4.
If E=255 and M≠0, then which of the following statement is true about X?
Answer :
Not a number
Q5.
The state space or the internal description of the system still involves a relationship between the input and output signals, what are the additional set of variables it also involves?
Answer :
State variables
Q6.
A closed form solution of the state space equations is easily obtained when the system matrix F is?
Answer :
Diagonal
Q7.
In direct form-I realization, all-pole system is placed before the all-zero system.
Answer :
False
Q8.
If we reverse the directions of all branch transmittances and interchange the input and output in the flow graph, then the resulting structure is called as _____
Answer :
Transposed form
Q9.
The realization of FIR filter by frequency sampling realization can be viewed as cascade of how many filters?
Answer :
Two
Q10.
The number of times a fetch from memory is performed per output sample is one of the factor used in the implementation of the system.
Answer :
True
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