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...Delft university of technology faculty electrical engineering mathematics and computer science circuits systems group ee c statistical digital signal processing modeling november open book exam copies the by hayes course slides allowed no other materials this has four questions points question consider complex random process x n aej w where is a zero mean white gaussian noise with variance for each following cases nd autocorrelation sequence if wide sense stationary wss power spectrum variable both are constants b uniformly distributed over interval that some d constant hint you may need dtft pair sin elsewhere solution when then mx e ej r k l ae j depends only on dierence p u because varies again rx au now m expected value can be evaluated as z ejnsin not independent since it dened varying we obtain while before dependent hence aejksin using given...