Digital Signal Processing Questions and Answers
Q1.
What are the values of z for which the value of X(z)=0?
Answer :
Zeros
Q2.
What is the set of all values of z for which X(z) attains a finite value?
Answer :
Radius of convergence
Q3.
An IIR system with system function H(z)=\(\frac{B(z)}{A(z)}\) is called a mixed phase if _____
Answer :
Some, but not all of the zeros are outside the unit circle
Q4.
A digital resonator is a special two pole band pass filter with the pair of complex conjugate poles located near the unit circle.
Answer :
True
Q5.
What are the main characteristics of Anti aliasing filter?
Answer :
All of the mentioned
Q6.
What is the spectrum that is obtained when we plot |ck| as a function of frequency?
Answer :
Magnitude voltage spectrum
Q7.
The condition with less number of samples L should be avoided.
Answer :
True
Q8.
What is the model that has been adopt for characterizing round of errors in multiplication?
Answer :
Additive white noise model
Q9.
How is the variance of the quantization error related to the size of the DFT?
Answer :
Proportional
Q10.
Decimation-in frequency FFT algorithm is used to compute H(k).
Answer :
True
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