Electronics and Communication Engineering - Exam Questions Papers - Discussion

Discussion Forum : Exam Questions Papers - Exam Paper 11 (Q.No. 21)
21.
Two discrete time systems with impulse responses h1[n] = δ[n - 1] and h2[n] = δ[n - 2] are connected in cascade. The overall impulse response of the cascaded system is
δ[n - 1] + δ[n - 2]
δ[n - 4]
δ[n - 3]
δ[n - 1] + δ[n - 2]
Answer: Option
Explanation:

h1(n) → delay by 1, h2(n) → delay by 2,

h1(n) * h2(n) → delay by 3.

Discussion:
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