A real-valued N-point sequence x(n) is called DFT bandlimited if its DFT X(k) = 0 for k

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A real-valued N-point sequence x(n) is called DFT bandlimited if its DFT X(k) = 0 for k₀ ? k ? N ? k₀. We insert (L ? 1)N zeros in the middle of X(k) to obtain the following LN-point DFT

Explain the meaning of this type of processing by working out an example with N = 4, L = 1, and X(k) = {1, 0, 0, 1}

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Digital Signal Processing

ISBN: ?978-0133737622

3rd Edition

Authors: Jonh G. Proakis, Dimitris G.Manolakis

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Question Posted: May 26, 2011 02:58 AM

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A real-valued N-point sequence x(n) is called DFT bandlimited if its DFT X(k) = 0 for k

Question:

X (k). 0. 0 < k < ko - 1 X'(k) = LN - ku + 1

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zn Therefore Lz Ln 11 11 3 3 3 LN LN LN LN LN1 XkWkn ...View the full answer

Digital Signal Processing

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