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Effects of Digital Filtering in Data Processing of Seismic Acceleration Records

EURASIP Journal on Advances in Signal Processing volume 2007, Article number: 029502 (2007) Cite this article

Abstract

The paper presents an application of digital filtering in data processing of acceleration records from earthquakes. Butterworth, Chebyshev, and Bessel filters with different orders are considered to eliminate the frequency noise. A dataset under investigation includes accelerograms from three stations, located in Turkey (Dinar, Izmit, Kusadasi), all working with an analogue type of seismograph SMA-1. Records from near-source stations to the earthquakes (i.e., with a distance to the epicenter less than 20 km) with different moment magnitudes , 6.4, and 7.4 have been examined. We have evaluated the influence of the type of digital filter on time series (acceleration, velocity, displacement), on some strong motion parameters (PGA, PGV, PGD, etc.), and on the FAS (Fourier amplitude spectrum) of acceleration. Several -damped displacement response spectra applying examined filtering techniques with different filter orders have been shown. SeismoSignal software tool has been used during the examples.

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Authors and Affiliations

  1. Department of Computer-Aided Engineering, University of Architecture, Civil Engineering and Geodesy, Sofia, 1046, Bulgaria

    Guergana Mollova

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  1. Guergana Mollova
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Correspondence to Guergana Mollova.

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Open Access This article is distributed under the terms of the Creative Commons Attribution 2.0 International License (https://doi.org/creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Mollova, G. Effects of Digital Filtering in Data Processing of Seismic Acceleration Records. EURASIP J. Adv. Signal Process. 2007, 029502 (2007). https://doi.org/10.1155/2007/29502

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