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On the joint time-frequency characteristics of chemical oscillations

✍ Scribed by K. Darowicki; W. Felisiak

Publisher
John Wiley and Sons
Year
2006
Tongue
English
Weight
278 KB
Volume
27
Category
Article
ISSN
0192-8651

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✦ Synopsis

Abstract

A method of time‐frequency transformations of nonstationary signals has been discussed and applied to the analysis of oscillatory Belousovβ€”Zhabotinsky (BZ) reaction. Selected registers of BZ reactions, that represent regular and complex dynamic behavior, have been submitted to the detailed spectral analysis using the short time Fourier transform (STFT). It has been demonstrated that the STFT is an accurate and suitable method for decomposition of chemical oscillations in the joint time and frequency domain. The energy distribution via STFT, presented in this article, revealed some specific characteristics of transitions between different regimes in the closed system of BZ reaction. Β© 2006 Wiley Periodicals, Inc. J Comput Chem 27: 961–965, 2006

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