The region of convergence of a causal finite duration discrete-time signal is
A. The entire z-plane except z = 0
B. The entire z-plane except z = ∞
C. The entire z-plane
D. A strip in z-plane enclosing jω–axis
Answer:A
The region of convergence of a causal finite duration discrete-time signal is
A. The entire z-plane except z = 0 B. The entire z-plane except z = ∞ C. The entire z-plane D. A strip in z-plane enclosing jω–axis
Explanation: For discrete time signal for any causal system the region of convergence is always entire z-plane but except z =0.