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Which filter is used to get back the original signal from sampled signal?

Which filter is used to get back the original signal from sampled signal? Correct Answer low pass filter

Sampling is the conversion of continuous-time signal to discrete-time signal by sampling the continuous signal with respect to specific time intervals, thereby discritising it. Now to get back the original signal we have to use low pass filter, which attenuates high frequencies and allows only low frequencies to pass.

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