Dithering ils also used in signal acquisition: adding some (known) noise before the sensor can help the signal reach the sensor's threshold. It can also help wi

Dithering ils also used in signal acquisition: adding some (known) noise before the sensor can help the signal reach the sensor's threshold. It can also help with quantization noise. Of course, that degrades the signal/noise ratio, but the SNR can be improved later by filtering out the spectral density of the noise, averaging multiple captures, making use of CRC, etc.