Determine the frequencies of aliasing noise

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Reference no: EM13229627

Given an analog signal

x(t) = 10 cos(11000 pi t) + 5 sin(15000 pi t) , for t>=0

sampled at a rate of 8000 Hz.

a. Sketch the spectrum of the original signal and the sampled signal from 0 kHz and 25 kHz.

b. Sketch the recovered analog signal spectrum if an ideal lowpass filter with a cutoff frequency of 4 kHz is used to filter the sampled signal.

c. Determine the frequency/frequencies of aliasing noise.

Reference no: EM13229627

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