Fluctuation Analysis of the Dynamics of Systems with Time-Varying Characteristics

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...

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Bibliographic Details
Published inTechnical physics letters Vol. 47; no. 6; pp. 463 - 465
Main Authors Pavlova, O. N., Pavlov, A. N.
Format Journal Article
LanguageEnglish
Published Moscow Pleiades Publishing 01.06.2021
Springer Nature B.V
Subjects
Algorithms
Classical and Continuum Physics
Modernization
Physics
Physics and Astronomy
random process
fluctuation analysis
nonstationarity
scaling exponent
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Summary: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.
ISSN:1063-7850
1090-6533
DOI:10.1134/S1063785021050126