Question: (a) Obtain the time-average auto correlation function of x(t) = 3 + 6 cos (20t) + 3 sin (20t). (Combine the cosine and sine terms

(a) Obtain the time-average auto correlation function of x(t) = 3 + 6 cos (20πt) + 3 sin (20πt). (Combine the cosine and sine terms into a single cosine with a phase angle.)
(b) Obtain the power spectral density of the signal of part (a). What is its total average power?

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a Write 6 cos 20t 3 sin 20t R cos 20t R cos cos 20t R sin sin 20t Thus R cos 6 cos 20t R sin ... View full answer

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