Digital Signal Processing Questions and Answers
Q1.
Which of the following is true about the magnitude square response of an elliptical filter?
Answer :
Equi-ripple in pass band and stop band
Q2.
The poles obtained from matched z-transform are identical to poles obtained from which of the following transformations?
Answer :
Impulse invariance
Q3.
When σ=0, then what is the condition on ‘r’?
Answer :
r=1
Q4.
Which of the following filter transformation is not possible?
Answer :
High pass analog filter to high pass digital filter
Q5.
If the conversion technique is to be effective, then the LHP of s-plane should be mapped into __
Answer :
Inside unit circle
Q6.
The lack of precise control of cutoff frequencies is a disadvantage of which of the following designs?
Answer :
Window design
Q7.
Which of the following technique is more preferable for design of linear phase FIR filter?
Answer :
Chebyshev approximation
Q8.
The time required for the output of the D/A converter to reach and remain within a given fraction of the final value, after application of the input code word is called?
Answer :
Setting time
Q9.
What is the type of quantizer, if a Zero is assigned a decision level?
Answer :
Midrise type
Q10.
In the practical A/D converters, if the difference between the values at which the first transition and the last transition occur is not equal to FS – 2LSB, then such error is known as _____
Answer :
Scale-factor error
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