# Question: The power spectrum at the input to an ideal BPF

The power spectrum at the input to an ideal BPF is

Let the transfer function for the ideal BPF be

Determine the autocorrelation function of the output. You may have to make a reasonable approximation to obtain a simplified form. Assume that f2 – f1 ← 1.

Let the transfer function for the ideal BPF be

Determine the autocorrelation function of the output. You may have to make a reasonable approximation to obtain a simplified form. Assume that f2 – f1 ← 1.

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