#Signal-to-noise ratio (#SNR or #S/N) is a measure used in many disciplines, but is most common in analyzing electrical signals. SNR is the ratio of the power of a signal (desired input) to the power of the background noise (undesired input). Typically, the signal power can’t be controlled or increased. Therefore background noise must be reduced. To learn how, click: https://ilphotonics.com/improving-signal-to-noise-ratio/