Figure shows a sequence x n for which the value of x 3 is an unknown constant c The sample with amplitude c is not necessarily drawn to scale Let X 1 k X k e j2 3k 5 Where X k is the five point DFT of x n The sequence x 1 n plotted in Figure is the inverse DFT of X 1 k What is the value of c 1 1 0 ...

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Figure shows a sequence x[n] for which the value of x[3] is an unknown constant c. The

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Figure shows a sequence x[n] for which the value of x[3] is an unknown constant c. The sample with amplitude c is not necessarily drawn to scale. Let

X₁[k] = X[k]e^j2?3k/5.

Where X[k] is the five-point DFT of x[n]. The sequence x₁[n] plotted in Figure is the inverse DFT of X₁[k]. What is the value of c?

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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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Figure shows a sequence x[n] for which the value of x[3] is an unknown constant c. The

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Discrete Time Signal Processing

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