Consider the real finite length sequence x n shown in Figure (a) Sketch the finite length sequence y n whose six point DFT is Y k W 6 4k X k , where X k is the six point DFT of x n (b) Sketch the finite length sequence w n whose six point DFT is W k Re X k (c) Sketch the finite length sequence q n ...

a When multiplying the DFT of a sequence by a complex exponent ...

Consider the real finite-length sequence x[n] shown in Figure. (a) Sketch the finite-length sequence y[n] whose six-point

Question:

Consider the real finite-length sequence x[n] shown in Figure.

(a) Sketch the finite-length sequence y[n] whose six-point DFT is?

Y[k] = W₆^4k X[k],

where X[k] is the six-point DFT of x[n].

(b) Sketch the finite-length sequence w[n] whose six-point DFT is?

W[k] = Re{X [k]}.

Q[k] = X[2k], ? ? ? ? ? ? ? k = 0, 1, 2.

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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 the real finite-length sequence x[n] shown in Figure. (a) Sketch the finite-length sequence y[n] whose six-point

Question:

x [n] 2 -2 -1 0 1 2 3 4 5 6

Step by Step Answer:

a When multiplying the DFT of a sequence by a complex exponent...View the full answer

Discrete Time Signal Processing

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