Application of the wavelet transform in filtering the noise of real earthquake accelerograms
Application of the wavelet transform in filtering the noise of real earthquake accelerograms

Application of the wavelet transform in filtering the noise of real earthquake accelerograms

DOI: 10.37153/2618-9283-2021-3-19-27

Authors:  

Харланова Светлана Владимировна Svetlana V. Kharlanova
Candidate of Technical Sciences, Associate Professor of the Department of Mathematics and Informatics,
Volgograd State Technical University, Volgograd, Russian Federation


Vladimir L. Kharlanov
Dr. Sci. (Engineering), Professor of the Department "Building constructions, bases and reliability of structures". FSFEI HE Volgograd State Technical University. Volgograd, Russian Federation


Rubric:     Theoretical and experimental studies   
Key words: earthquake accelerograms, wavelet transform, dynamism coefficient, energy criterion
Annotation:

In the deterministic analysis of building structures, real accelerograms are used as input data. Very often, only instrumental recordings of accelerograms that are not cleared of noise are publicly available. Such accelerograms cannot be used directly in the analysis of building structures. Various broadband filters are used to adjust the instrumental recordings of accelerographs. This article discusses the possibility of applying filters based on the wavelet transform.

The technique of the algorithm of filtering from the noise of the source data is considered. As an efficiency of this filtering algorithm, a comparative analysis of the dynamic coefficient and the energy criteria of the pulse and Arias for the corrected and instrumental accelerograms is carried out.

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