2.2 Oversampling and Decimation

The oversampling technique requires a higher amount of samples. These extra samples can be achieved by oversampling the signal. For each additional bit of resolution, n, the signal must be oversampled 4ⁿ times. The frequency the signal has to be sampled with is given by the equation below:

$f_{oversampling}={4^n\times f}_{nyquist}$