engineering recuitment GATE ECE 2023-24 Test Series Signals and Systems Discrete Time Signals and Systems Discrete Time LTI Systems
A discrete-time all-pass system has two of its poles at 0.25∠0° and 2∠30°. Which one of the following statement about the system is TRUE?
1
It has two more poles at 0.5∠30° and 4∠0°.
2
It is stable only when the impulse response is two-sided.
3
It has constant phase response over all frequencies.
4
It has constant phase response over the entire z-plane.