Show that any discrete-time signal x(n) can be expressed as where u(n - k) is a unit

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Show that any discrete-time signal x(n) can be expressed as where u(n - k) is a unit step delayed by k units in time, thatis,image

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Digital Signal Processing

ISBN: ?978-0133737622

3rd Edition

Authors: Jonh G. Proakis, Dimitris G.Manolakis

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