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Gaussian noise
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Noise whose probability distribution or probability density function is gaussian, that is, it has the standard form
where σ is the standard deviation.
Noise that is steady or stationary in character and originates from the sum of a large number of small events, tends to be gaussian by the central limit theorem of probability theory.
Source: Keysight Technologies. Fundamentals of RF and Microwave Noise Figure Measurements. Application notes. www.keysight.com
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