# Question

A random process with a PSD of SXX (f) = 1 / 1 + f2 is input to a filter. The filter is to be designed such that the output process is white (constant PSD). This filter is called a whitening filter.

(a) Find the transfer function of the whitening filter for this input process. Be sure that the filter is causal.

(b) Sketch a circuit which will realize this transfer function.

(a) Find the transfer function of the whitening filter for this input process. Be sure that the filter is causal.

(b) Sketch a circuit which will realize this transfer function.

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