Question

4. Which of the following is a correct expression for Impulse response?
a) x[n] = x=-*[k] & [n – k]
b) x[n] = _ *[k][n]
c) x[n] = K -*[k] @[k]
d) x [n] = EX- *[k] @[nk]
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Answer 1

Answer:

Option (A) ⇒ x[n] = x=-*[k] & [n – k] is the correct answer

Step-by-step explanation:

• X [n] is represented as the weighted sum of time shifted impulses and concisely written as x[n] = ∑∞k=-∞ x[k]δ[n-k]..
• A diagram stating the relations are attached below for your reference.
• When a dynamic system receives a brief input signal termed an impulse, its output in signal processing is called the impulse response, or impulse response function (IRF).
• An impulse response is, more broadly speaking, any dynamic system's response to an outside change.
• The impulse response in both situations describes the system's response as a function of time (or possibly as a function of some other independent variable that parameterizes the dynamic behaviour of the system).

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