VAK Russia 1.6 UDC 55 CSCSTI 37.01 Russian Classification of Professions by Education 05.00.00 Russian Library and Bibliographic Classification 26 Russian Trade and Bibliographic Classification 63 BISAC SCI UDC 550.34 UDC 550.383 CSCSTI 37.15 CSCSTI 37.25 CSCSTI 37.31 CSCSTI 38.01 CSCSTI 36.00 CSCSTI 37.00 CSCSTI 38.00 CSCSTI 39.00 CSCSTI 52.00

ON THE USE OF A COMPLEX INDICATOR OF THE STABILITY OF PERMUTATION ENTROPY OF TIME SERIES FRAGMENTS WHEN ANALYZING INFRASOUND MONITORING SIGNALS OF THE ALTAI REPUBLIC On the Use of a Complex Indicator of the Stability of Permutation Entropy of Time Series Fragments When Analyzing Infrasound Monitoring Signals of the Altai Republic

Published in Russian Journal of Earth Sciences · Volume 23, Issue 6 · Pages 1–16 · Rubric: ORIGINAL ARTICLES
DOI: https://doi.org/10.2205/2023ES000887 · EDN: XXZEHM
Received: 06.12.2023 Accepted: 29.12.2023 Published: 31.12.2023 Language of publication: RUS
This paper discusses one of the approaches that allows us to assess the degree of complexity or randomness of fragments of a time series in order to detect infrasound or geomagnetic signals in the results of observations of the dynamics of the natural or man-made processes under study. In our case, we are talking about monitoring the infrasound background on the territory of the Altai Republic. To solve the problem of estimating the required characteristics of a time series with minimal computational costs and in real time, a complex indicator of the stability of permutation entropy is introduced, since estimating the value of classical permutation entropy for n = 3 (the most commonly used version of permutation entropy) does not allow solving the problem with sufficient accuracy.
infrasound monitoring, time series, permutation entropy, complexity assessment, stratospheric waveguide, turning points
Funding
The facilities of the GC RAS Common Use Center “Analytical Center of Geomagnetic Data” (http://ckp.gcras.ru/) were used for conducting the research. The research was carried out with funds from the Russian Science Foundation (RSF) and the Ministry of Education and Science of the Altai Republic No. 23-21-10087.
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