Digital Signal Processing Multiple Choice Questions and Answers

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

View Answer

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

View Answer

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

View Answer

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

View Answer

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

View Answer

Answer:Maximal ripple filters

6 Remez exchange algorithm is an iterative algorithm used in error approximation.

A True

B False

View Answer

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

View Answer

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

View Answer

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

View Answer

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

View Answer

Answer:cos(ω/2)

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