1.

Noise with uniform power spectral density of N0(W/Hz) is passed through a filter H(\(\omega\)) = 2exp(−j\(\omega\)td) followed by an ideal low pass filter of bandwidth B Hz. The output noise power in Watts is (a) 2 N0B (b) 4 N0B (c) 8 N0B (d) 16 N0B

Answer»

(b) 4 N0

The output power spectral density of Noise is

Nout = |H(\(\omega\))|2Ni

= 4 No

The output noise power PN = 4N0B



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