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Atmospheric and Oceanic Optics

2019 year, number 1

Spectral contributions of sections of power-law structure function of random processes with stationary increments. Part 2. The exponent is greater than one

V.A. Fedorov
V.E. Zuev Institute of Atmospheric Optics of Siberian Branch of the Russian Academy of Science, 1, Academician Zuev square, Tomsk, 634021, Russia
Keywords: случайный процесс со стационарными приращениями, степенная структурная функция, спектральная плотность, спектральные вклады, random process with stationary increments, power-law structure function, spectral density, spectral contribution

Abstract

The frequency behavior of the spectral contributions of the initial, middle, and “finite” parts of the power-law structure function (with an exponent less than one) to the spectral density (SD) of a random process with stationary increments is considered. It is shown that it is much more complicated than the strictly positive monotonic power-law frequency dependence of the initial SD. The latter corresponds only to the behavior of the spectral contribution of the initial section of the given structure function. The analytical approximate dependences of the frequency behavior of all these spectral contributions are presented and analyzed. They are recommended for wide practical use.