# Optimum Equi Ripple Filter Design 2 MCQ’s

This set of Digital Signal Processing Multiple Choice Questions & Answers (MCQs) focuses on “Optimum Equi Ripple Filter Design 2″.

1. 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

2. 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

3. 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

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

a) True

b) False

5. 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

6. 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

7. If δ_{1} represents the ripple in the pass band for a chebyshev filter, then which of the following conditions is true?

a) 1-δ_{1} ≤ H_{r}(ω) ≤ 1+δ_{1}; |ω|≤ω_{P}

b) 1+δ_{1} ≤ H_{r}(ω) ≤ 1-δ_{1}; |ω|≥ω_{P}

c) 1+δ_{1} ≤ H_{r}(ω) ≤ 1-δ_{1}; |ω|≤ω_{P}

d) 1-δ_{1} ≤ H_{r}(ω) ≤ 1+δ_{1}; |ω|≥ω_{P}

8. 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

9. 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

10. 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

11. 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

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