Digital Signal Processing Questions and Answers
Q1.
How much phase shift does an Hilbert transformer impart on the input?
Answer :
90°
Q2.
Which of the following is true regarding the frequency response of Hilbert transform?
Answer :
Purely imaginary
Q3.
In this section, we confine our attention to FIR designs in which h(n)=-h(M-1-n).
Answer :
True
Q4.
In this section, we confine our attention to FIR designs in which h(n)=h(M-1-n).
Answer :
False
Q5.
Remez exchange algorithm is an iterative algorithm used in error approximation.
Answer :
True
Q6.
Which of the following filter design is used in the formulation of design of optimum equi ripple linear phase FIR filter?
Answer :
Chebyshev approximation
Q7.
The error function E(ω) does not alternate in sign between two successive extremal frequencies.
Answer :
False
Q8.
In Parks-McClellan program, an array of maximum size 10 that specifies the desired frequency response in each band is denoted by?
Answer :
FX
Q9.
In a practical implementation of the frequency sampling realization, quantization effects preclude a perfect cancellation of the poles and zeros.
Answer :
True
Q10.
How does the frequency of oscillations in the pass band of a low pass filter varies with the value of M?
Answer :
Increase with increase in M
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