Consider a sequence x[n] and irs discrete-time Fourier transform X(e j ). The following is known: x[n]

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Consider a sequence x[n] and irs discrete-time Fourier transform X(e^jω). The following is known:

x[n] is real and causal,

Re{X(e^jω)} = 5/4 – cosω.

Determine a sequence x[n] consistent with the given information.

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Discrete Time Signal Processing

ISBN: 978-0137549207

2nd Edition

Authors: Alan V. Oppenheim, Rolan W. Schafer

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Question Posted: May 26, 2011 02:57 AM

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Consider a sequence x[n] and irs discrete-time Fourier transform X(e j ). The following is known: x[n]

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Discrete Time Signal Processing

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