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Adaptive Short Time Fourier Transform (STFT) analysis of Seismic Electric Signal (SES): A comparison of hamming and rectangular window

Astuti , Winda and Sediono , Wahju and Aibinu, A. M. and Akmeliawati, Rini and Salami, Momoh Jimoh Eyiomika (2012) Adaptive Short Time Fourier Transform (STFT) analysis of Seismic Electric Signal (SES): A comparison of hamming and rectangular window. In: 2012 IEEE Symposium on Industrial Electronics and Applications (ISIEA2012), September 23-26, 2012, Bandung, Indonesia.

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Abstract

Seismic electric signal (SES) is one of features for predicting earthquakes (EQs) because of its significant changes in the amplitude of the signal prior to the earthquake. This paper presents detailed analysis of SES recorded prior to earthquake that occurred in Greece in the period from January 1, 2008 to June 30, 2008. During this period of time 5 earthquakes were recorded with magnitudes greater than 6R. In this analysis STFT involving adaptively sliding window technique is used, in which Hamming and rectangular window functions are applied and compared. The comparison shows that Hamming window gives better results in analyzing the first significantly changes of SES prior to the EQ. The application of Hamming window resulted in less rippled spectrum shape which is more suitable to be used in characterizing the SES.

Item Type: Conference or Workshop Item (Full Paper)
Additional Information: 6584/28552
Uncontrolled Keywords: seismic electric signal (SES); adaptive STFT; Hamming window; rectangular window
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK7800 Electronics. Computer engineering. Computer hardware. Photoelectronic devices > TK7885 Computer engineering
Kulliyyahs/Centres/Divisions/Institutes: Kulliyyah of Engineering > Department of Mechatronics Engineering
Depositing User: Dr.-Ing. Wahju Sediono
Date Deposited: 15 Jan 2013 10:28
Last Modified: 19 Feb 2013 14:18
URI: http://irep.iium.edu.my/id/eprint/28552

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