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The minimum nyquist sampling rate is given as, fs =

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The minimum nyquist sampling rate is given as, fs =

(a) 1/T

(b) T

(c) 2/T

(d) 2T

I had been asked this question during an online exam.

I'd like to ask this question from Coherent Detection in chapter Bandpass Modulation and Detection of Digital Communications

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Correct answer is (a) 1/T

Explanation: The input signal comprises of a prototype signal plus noise and the bandwidth is 1/2T where T is the symbol time and minimum nyquist sampling rate can be given as 2W or 1/T.

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