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IEVref:702-08-50ID:
Language:enStatus: Standard
Term: gaussian noise
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Definition: random noise the values of which over any number n of arbitrary instants are distributed in accordance with an n-variable gaussian probability law

NOTE 1 – Gaussian noise is entirely defined by its time varying mean and by a covariance function of two instants. If the noise is stationary the mean is independent of time, the covariance becomes a correlation function depending only on the difference between the two instants considered and the knowledge of this correlation function is equivalent to that of the power spectral density.

NOTE 2 – Gaussian noise may be produced by a large number of independent pulses such that in any finite time interval each has a negligible value compared to that of the sum of the pulses.

NOTE 3 – In practice thermal noise, shot noise and quantum noise are gaussian noises.


Publication date:1992-03
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