(snr) is the ratio of the signal amplitude to the total noise
The ratio between useful television signal and disturbing noise or snow.
Signal to noise ratio, a measurement of the noise level in a signal expressed in db (decibels). in a video signal values from 45db to 60db produce an acceptable picture. less than 40db is likely to produce a “noisy” picture.
Отношение сигнал
The ratio of signal power to noise power in a detector
The ratio in decibels between an audio signal voltage and noise voltage. a device with a low signal-to-noise ratio is considered noisy, and a device with a high signal-to-noise ratio is considered clean or quiet, with little background noise accompanying the signal.
