|Definition:|| ratio of the power of the wanted signal to the total power of interfering signals and noise, evaluated under specified conditions at a specified point of a transmission channel
Note 1 to entry: The signal-to-interference ratio
is generally expressed in decibels.
Note 2 to entry: The specified conditions comprise among others:
- the nature and characteristics of the wanted signal,
- the nature and characteristics of the interfering signals and the noise,
- the characteristics of the receiver, such as the bandwidth.