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a) Prove that the periodogram computation via the DFT of the auto-covariance of x[n] is equal to the squared magnitude DFT of x[n] scaled by
a) Prove that the periodogram computation via the DFT of the auto-covariance of x[n] is equal to the squared magnitude DFT of x[n] scaled by 1/N, l=Nl=N^xx[l]ej2fl=N1n=0N1x[n]ej2fn2
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