The periodogram I(?) if a discrete-time random signal x[n] was defined in Eq. (10.52) as? I(?) =
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The periodogram I(?) if a discrete-time random signal x[n] was defined in Eq. (10.52) as?
I(?) = 1/LU |V(ej?)|2,
where V(ej?) is the discrete-time Fourier transform of the finite-length sequence v[n] = w[n]x[n], with w[n] a finite-length window sequence of?length L, and U is a normalizing constant.
Show that the periodogram is also equal to 1/LU times the Fourier transform of the aperiodic autocorrelation sequence of v[n]; i.e.,
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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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