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DescriptionPink noise 1d autocorrelation.png
English: The autocorrelation (Pearson's correlation coefficient) of one-dimensional (top) and two-dimensional (bottom) pink noise signals, across distance d (in units of the longest wavelength comprising the signal). Grey curves are the autocorrelations of a sample of pink noise signals (comprising discrete frequencies), and black is their average. Red is the theoretically calculated autocorrelation when the signal comprises these same discrete frequencies, and blue assumes a continuum of frequencies.
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