IEVref:713-11-19ID:
Language:enStatus: Standard
Term: signal-to-noise ratio
Synonym1: signal/noise ratio
[Preferred]
Synonym2:
Synonym3:
Symbol: S/N
Definition: the ratio, generally expressed in decibels, of the power of the wanted signal to that of the coexistent noise at a specified point in a transmission channel, usually at the receiver output, under specified conditions

NOTE 1 – The signal cannot generally be separated from noise, and in practice the ratio (signal+noise) to noise is measured.

NOTE 2 – The specified conditions comprise among others:

– the nature and characteristics of the wanted signal,
– the nature and characteristics of the noise,
– the receiver and antenna characteristics such as the bandwidth.


Publication date:1998-04
Source702-08-61 MOD
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