Question:medium

Discrete-time LTI system is BIBO stable if:

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A discrete-time LTI system is BIBO stable if and only if its impulse response sequence is absolutely summable: \(\sum_{n=-\infty}^{\infty} |h[n]| < \infty\). In the \(z\)-domain, this matches the condition that the Region of Convergence (ROC) must contain the unit circle (\(|z| = 1\)).
Updated On: Jun 23, 2026
  • The absolute sum of its impulse response converges
  • Its impulse response is finite
  • It has no poles
  • Its frequency response is zero
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The Correct Option is A

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