BRUEL & KJAER 1615 - Noise

Line Spectrum
NOISE
White Noise
Pink Noise
Random Noise
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amplitude per unit frequency) over -a specified fre-
quency range.
A line spectrum is a spectrum consisting of discrete
single frequency components~
See White Noise Spectrum.
Pink noise
is a noise whose spectral density decrea-
ses at a rate of 3 dB per octave over a specified
frequency
range.
The instantaneous magnitude of a random noise sig-
nal is specified only by a probability distribution
function.
If the distribution function is Gaussian, the random
signal is called "Gaussian random noise".