Digital Signal Processing Questions and Answers | Digital Signal Processing MCQs

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Questions
1 If the filter has symmetric unit sample response with M odd, then what is the value of Q(ω)?
A cos(ω/2)
B sin(ω/2)
C 1
D sinω

Answer:1
2 If the filter has anti-symmetric unit sample response with M odd, then what is the value of Q(ω)?
A cos(ω/2)
B sin(ω/2)
C 1
D sinω

Answer:sinω
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3 In which of the following way the real valued desired frequency response is defined?
A Unity in stop band and zero in pass band
B Unity in both pass and stop bands
C Unity in pass band and zero in stop band
D Zero in both stop and pass band

Answer:Unity in pass band and zero in stop band
4 The error function E(ω) should exhibit at least how many extremal frequencies in S?
A L
B L-1
C L+1
D L+2

Answer:L+2
5 The filter designs that contain maximum number of alternations are called as ______________
A Extra ripple filters
B Maximal ripple filters
C Equi ripple filters
D None of the mentioned

Answer:Maximal ripple filters
6 Remez exchange algorithm is an iterative algorithm used in error approximation.
A True
B False

Answer:True
7 When |E(ω)|≤δ for all frequencies on the dense set, the optimal solution has been found in terms of the polynomial H(ω).
A True
B False

Answer:True
8 In Parks-McClellan program, an array of maximum size 10 that specifies the weight function in each band is denoted by?
A WTX
B FX
C EDGE
D None of the mentioned

Answer:WTX
9 The filter designs which are formulated using chebyshev approximating problem have ripples in?
A Pass band
B Stop band
C Pass & Stop band
D Restart band

Answer:Pass & Stop band
10 If the filter has symmetric unit sample response with M even, then what is the value of Q(ω)?
A cos(ω/2)
B sin(ω/2)
C 1
D sinω

Answer:cos(ω/2)

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