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A signal can be recovered from its sample by using

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A signal can be recovered from its sample by using

(a) Low pass filter

(b) High pass filter

(c) Band pass filter

(d) Band stop filter

This question was posed to me in exam.

My query is from Digital Communication System topic in division Signals and Spectra of Digital Communications

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Best answer
Right option is (a) Low pass filter

The best I can explain: A signal can be recovered from its sampled version by using an ideal low pass filter.

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