In mathematics, in the area of statistical analysis, the bispectrum is a statistic used to search for nonlinear interactions. == Definitions == The Fourier transform of the second-order cumulant, i.e., the autocorrelation function, is the traditional power spectrum.
In mathematics, in the area of statistical analysis, the bispectrum is a statistic used to search for nonlinear interactions. == Definitions == The Fourier transform of the second-order cumulant, i.e., the autocorrelation function, is the traditional power spectrum.
Source: Wikipedia "Bispectrum" · CC BY-SA 4.0
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