Digital Signal Processing Questions and Answers
Q1.
Which of the following use quadrature mirror filters?
Answer :
Sub band coding & Trans-multiplexer
Q2.
Which of the following has to be performed in sampling rate conversion by rational factor?
Answer :
Interpolation
Q3.
An IIR system with system function H(z)=\(\frac{B(z)}{A(z)}\) is called a minimum phase if __
Answer :
All poles and zeros are inside the unit circle
Q4.
If the phase ϴ(ω) of the system is linear, then the group delay of the system?
Answer :
Constant
Q5.
If a power signal has its power density spectrum concentrated about zero frequency, the signal is known as ___
Answer :
Low frequency signal
Q6.
Which of the following electromagnetic signals has a frequency range of 30kHz-3MHz?
Answer :
Radio broadcast
Q7.
Which of the following is the disadvantage of Hanning window over rectangular window?
Answer :
More width of main lobe
Q8.
The effect of round off errors due to the multiplications performed in the DFT with fixed point arithmetic is known as Quantization error.
Answer :
True
Q9.
The 4N quantization errors are correlated with the sequence {x(n)}.
Answer :
False
Q10.
FFT algorithm is designed to perform complex operations.
Answer :
True
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