(a) Plot the ideally sampled signal and its frequency spectrum for the signal of Problem (c) for sampling frequencies of 50, 150, and 250 Hz.
(b) Discuss the suitability of these sampling frequencies for the ideal system.
(c) Repeat Parts (a) and (b) for the signal of Problem (d).
(d) Repeat Parts (a) and (b) for the signal of Problem (e).
Find the minimum sampling frequency that can be used to obtain samples of each signal listed below. Assume ideal system components.
(c) ω(t) = sin(400t) – 4 cos(100πt) + 30 cos(200 πt)
(d) x(t) = 25 sinc(250t)
(e) y(t) = 25 sinc2(250t)
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