
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN: 9780133923605
Author: Robert L. Boylestad
Publisher: PEARSON
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Question
A causal LTI system is described by the following equation:
y[n] – ay[n-1] = b x[n] + x[n-1] where a is real and less than 1 in magnitude.
a) Find a value of b such that magnitude of the frequency response of the system is one for all Ω.
b) Find and plot the output of this system with a = 1/2 when the input is x[n] = (1/2)n u[n]
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