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Unformatted text preview: } k ]/ k! for k=0, 1, 2, …. ∞ . x(t) A t A “a flipping instant” a) Find the autocorrelation function, E{x(t+ τ ) x(t)} of random process, x(t), and show that it is only a function of τ . b) Show that the E{x(t)} is just a constant. Therefore, this process is WSS. c) Find and draw the Power Spectral Density, P x (f), of the random process. d) Repeat the parts above if the voltage flips between +A and 0 (not –A) Hint: If you are having a problem, look at pp.376377, in Miller and Childers. Problem #4 and 5 Problems 1.5 and 1.8 in Chapter 1 of Haykin’s Book (which may be found in the library)....
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 Spring '10
 yossi
 Signal Processing, Probability theory, spectral density, Autocorrelation, Wiener–Khinchin theorem

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