Two signals with amplitude frequency spectra shown in Figure (a) and (b) are to be sampled...

Two signals with amplitude frequency spectra shown in Figure (a) and (b) are to be sampled using an ideal sampler.

(a) Sketch the spectra of the resulting signals for when sampling periods of 10, 25, and 50 ms are used.

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(b) Which of the sampling frequencies is acceptable for use if the signal of Figure (a) is to be reconstructed using an ideal low-pass filter?

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(c) Which of the sampling frequencies is acceptable for use if the signal of Figure (b) is to be reconstructed using an ideal low-pass filter?