# Electronics/Sampling Theorem

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To perfectly reconstruct the digital signal that was got by sampling an analog signal, the Sampling Theorem must be followed.

Sampling Theorem states that a sampling frequency must be at least twice the highest (maximum) frequency.

- F
_{s}>=2F_{m}

where

- F
_{s}is the sampling frequency - F
_{m}is the maximum frequency of the signal to be sampled