# Question

Suppose you want to learn the characteristics of a certain filter. A white noise source with an amplitude of 15 watts/ Hz is connected to the input of the filter. The power spectrum of the filter output is measured and found to be

(a) What is the bandwidth (3 dB) of the filter?

(b) What is the attenuation (or gain) at zero frequency?

(c) Show one possible (i. e., real, causal) filter that could have produced this output PSD.

(a) What is the bandwidth (3 dB) of the filter?

(b) What is the attenuation (or gain) at zero frequency?

(c) Show one possible (i. e., real, causal) filter that could have produced this output PSD.

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