Consider the signal m(t) = 6cos(87t)+2cos(47t) (a) Calculate the average power P, of the signal. (b) Find and plot the power spectral density S„(f) of the signal. (c) Find the autocorrelation function of w(t). [Hint: 2cosxcos y=cos(x+ y)+cos(x- y); 2cos² x=(1+cos 2x)] %3D
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![Consider the signal
m(t) = 6cos(87t)+2cos(47t)
(a) Calculate the average power P, of the signal.
(b) Find and plot the power spectral density S„(f) of the signal.
W
(c) Find the autocorrelation function of w(t).
[Hint: 2cosxcos y = cos(x+y)+cos(x- y); 2cos² x=(1+cos 2x)]](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F93464a96-788c-42d4-8b7b-db4dd5f7870b%2F04604bef-39d8-4f75-9027-355349127885%2Fq9plujl_processed.jpeg&w=3840&q=75)
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