Determine whether or not each of the following signals is periodic. In case a signal is periodic,
Question:
Determine whether or not each of the following signals is periodic. In case a signal is periodic, specify its fundamental period.
(a) xa(t) = 3 cos(5t + π/6)
(b) x(n) = 3 cos(5n + π/6)
(c) x(n) = 2 exp[j(n/6 - π)]
(d) x(n) = cos(n/8) cos (π n/8)
(e) x(n) = cos(πn/2) – sin(πn/8) + 3cos(πn/4+π/3)
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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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