A communications figure of merit that is equal to the relative power of a communication signal level to the noise level. As SNR decreases for a communication channel, it becomes more difficult to distinguish between information and non-information (noise) and data throughput drops.
The ratio of the magnitude of a signal to that of the noise (interference), often expressed in decibels.
Signal Noise Recognition.
difference in strength between the signal we want to receive and the background noise (or any unwanted signal).
The amount of power, measured in decibels (dB), by which a signal exceeds the amount of channel noise at the same point of transmission. It provides an indication of the clarity or accuracy with which communication can take place.