Consider the signal x(n) = anu(n), |a| < 1. (a) Determine the spectrum X(). (b) The signal
Question:
(a) Determine the spectrum X(ω).
(b) The signal x(n) is applied to a decimator that reduces the rate by a factor of 2. Determine the output spectrum.
(c) Show that the spectrum is part (b) is simply the Fourier transform of x(2n).
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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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