Consider a system with a real-valued impulse response h(n) and frequency response H(?) = |H (?)| ej?

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Consider a system with a real-valued impulse response h(n) and frequency response H(?) = |H (?)| ej? (?)

The quantity provides a measure of the ?effective duration? of h(n)

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(a) Express D in terms of H(?).

(b) Show that D is minimize for ?(?) = 0.

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Digital Signal Processing

ISBN: ?978-0133737622

3rd Edition

Authors: Jonh G. Proakis, Dimitris G.Manolakis

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