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Fluctuation analysis of the dynamics of systems with time-varying characteristics
O. N. Pavlova, A. N. Pavlov Saratov State University
Abstract:
The fluctuation analysis method is modernized with allowance for the statistics of local standard deviations of the signal profile from the piecewise linear approximation of the trend. It is shown that the proposed approach allows one to reduce the method’s sensitivity to individual artifacts and to increase the stability of the algorithm for calculating the scaling exponent, which favors a wider use of modernized fluctuation analysis for solving problems of complex process diagnostics in the dynamics of systems with time-varying characteristics.
Keywords:
fluctuation analysis, random process, nonstationarity, scaling exponent.
Received: 10.12.2020 Revised: 10.12.2020 Accepted: 17.02.2021
Citation:
O. N. Pavlova, A. N. Pavlov, “Fluctuation analysis of the dynamics of systems with time-varying characteristics”, Pisma v Zhurnal Tekhnicheskoi Fiziki, 47:9 (2021), 52–54; Tech. Phys. Lett., 47:6 (2021), 463–465
Linking options:
https://www.mathnet.ru/eng/pjtf4806 https://www.mathnet.ru/eng/pjtf/v47/i9/p52
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Abstract page: | 66 | Full-text PDF : | 27 |
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