Consider a sequence x[n] and irs discrete-time Fourier transform X(e j ). The following is known: x[n]
Question:
Consider a sequence x[n] and irs discrete-time Fourier transform X(ejω). The following is known:
x[n] is real and causal,
Re{X(ejω)} = 5/4 – cosω.
Determine a sequence x[n] consistent with the given information.
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Related Book For
Discrete Time Signal Processing
ISBN: 978-0137549207
2nd Edition
Authors: Alan V. Oppenheim, Rolan W. Schafer
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