Change the system impulse response in Problem 5.18 to h(t) = ?(t) ? 4 e?4t u(t) and find and plot the response to the same excitation x(t) = rect(2(t ? 1/4) ).
What will be an ideal response?
Using linearity, this response is the excitation convolved with a unit impulse at time zero minus the response calculated in Exercise 18.
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