What is Wiener-Khinchin theorem?(a) Spectral density and auto-covariance makes a fourier transform pair(b) Spectral density and auto-correlatioon makes a fourier tranform pair(c) Spectral density and variance makes a fourier tranform pair(d) None of the mentionedI got this question in quiz.I want to ask this question from Spectral Density and Autocorrelation topic in portion Signals and Spectra of Digital Communications

What is Wiener-Khinchin theorem?(a) Spectral density and auto-covarian

1.	What is Wiener-Khinchin theorem?(a) Spectral density and auto-covariance makes a fourier transform pair(b) Spectral density and auto-correlatioon makes a fourier tranform pair(c) Spectral density and variance makes a fourier tranform pair(d) None of the mentionedI got this question in quiz.I want to ask this question from Spectral Density and Autocorrelation topic in portion Signals and Spectra of Digital Communications
Answer» Correct option is (b) Spectral density and auto-correlatioon makes a FOURIER TRANFORM pair The EXPLANATION: According to the theorem spectral density of a signal X(t) and auto correlation function makes a fourier tranform pair.

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