engineering recuitment GATE ECE 2023-24 Test Series Signals and Systems Z Transform Properties of Region of Convergence
X(z) represents the z-transform of a sequence x[n]. The below figure shows the pole zero plot of the X(z).
Which of the following is/are true regarding the ROC?
1
For x[n] to be right sided signal, ROC is |z|> 0.5
2
For x[n] to be left sided signal, ROC is |z| < 0.5
3
For x[n] to be right sided signal, ROC is |z| > 3
4
For x[n] to be left sided signal, ROC is |z| < 3