Let X[k] denote the N-point DFT of the N-point sequence x[n]. (a) Show that if x[n] =
Question:
Let X[k] denote the N-point DFT of the N-point sequence x[n].
(a) Show that if
x[n] = − x[N – 1 – n],
then X[0] = 0. Consider separately the cases of N even and N odd.
(b) Show that if N is even and if
x[n] = x[N – 1 – n],
then X[N/2] = 0.
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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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