Random Processes

[whytheheckme]

Hello everyone!

I have a stats problem that I need help with :eek:

Any help is greatly appreciated
(please note, this is a problem that I picked out of the book to learn from)



A random process X(t) is given by

X(t) = Acos(ωt)+ Bsin(ωt)

where omega is greater than zero, a constant and A and B are uncorrelated rv's with E[A]=E[B]=0 and Var([A]=Var[B]=9

a) Show that X(t) is a W.S.S. random process.
b) Find ACF of X(t)

I'm not sure where to start.

Thanks,
Jacob

[Richard Wallace]

I'd start by reading this book (http://www.amazon.com/Probability-Random-Variables-Stochastic-Processes/dp/0072817259).

Or the Schaum's Outline -- much cheaper.