Question

A waveform, x(t)=10cos(100 πt+π/3)+20cos(200 πt+π/6) is to be
uniformly sampled for a digital transmission.

(a) What is the maximum allowed time interval between sample values
to ensure perfect signal reproduction?

(b) Draw the discrete time signal obtained and frequency
transform after sampling.

(c) If we want to reproduce one hour of this waveform, how many
sample values need to be stored?

Answer #1

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