DSP Basics – Decimation

Decimation lets you trade bandwidth for bit-depth. Resample to a lower rate, average the samples, and you get greater bit-depth, almost like magic. (Thank you Claude Shannon!)
This is how we can get 22-bit bit-depth performance from a 16-bit analog-to-digital converter.

Decimation lets you trade bandwidth for bit-depth. Resample to a lower rate, average the samples, and you get greater bit-depth, almost like magic. (Thank you Claude Shannon!)