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If each pulse of the sequence to be detected is in _____ shape, the pulse can be detected without ISI.

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If each pulse of the sequence to be detected is in _____ shape, the pulse can be detected without ISI.

(a) Sine

(b) Cosine

(c) Sinc

(d) None of the mentioned

I had been asked this question during an online interview.

This interesting question is from Intersymbol Interference-1 topic in chapter Baseband Demodulation and Detection of Digital Communications

1 Answer

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Right answer is (c) Sinc

To explain I would say: The sinc shaped pulse is the ideal nyquist pulse. If each pulse in the sequence to be detected is in sinc shape the pulses can be detected without ISI.

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