Q158
A discrete-time all-pass system has two of its poles at 0.25<0° and 2<30°. Which one of the following statements about the system is TRUE?
A.
It has two more poles at 0.5<30° and 4<0°
B.
It is stable only when the impulse response is two-sided
AnswerC.
It has constant phase response over all frequencies
D.
It has constant phase response over the entire z-plane
Answer: Option B
Solution
Answer: Option B
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