Recall from Problem 4.32 that an LTI system cannot produce frequencies at its output that are different
Question:
Recall from Problem 4.32 that an LTI system cannot produce frequencies at its output that are different from those applied in its input. Thus if a system creates “new” frequencies, it must be nonlinear and/or time varying and determine the output spectra when the input spectrum is
(a) y (n) = x(2n)
(b) y (n) = x2(n)
(c) y (n) = (cos πn) x (n)
Transcribed Image Text:
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Related Book For
Digital Signal Processing
ISBN: ?978-0133737622
3rd Edition
Authors: Jonh G. Proakis, Dimitris G.Manolakis
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