Signal Processing of Earthquake Precursor at ELF Band

Author

Fujii, Takashi ; Takumi, Ichi ; Hata, Masayasu ; Yasukawa, Hiroshi

Author_Institution

Nagoya Inst. of Technol.

fYear

2006

fDate

Oct. 18 2006-Sept. 20 2006

Firstpage

1

Lastpage

6

Abstract

In this paper, the signal processing technology of EM precursors for predicting earthquakes is discussed. The observed signals contain local signals related to earthquakes as well as global background noise which is stronger than the local signals. A method of global noise elimination by independent component analysis (ICA) is discussed. The second signal processing is to extract the sign of anomaly relevant to earthquake prediction. For the processing, the linear predicting coefficient (LPC) method is applied. The LPC error is well acknowledged as a precursor of large earthquakes exceeding magnitude seven

Keywords

earthquakes; geophysical signal processing; independent component analysis; signal denoising; ELF band; EM precursors; ICA; earthquake precursor; earthquake prediction; global background noise; global noise elimination; independent component analysis; linear predicting coefficient method; signal processing; Earthquakes; Electromagnetic radiation; Frequency; Geophysical measurement techniques; Ground penetrating radar; Independent component analysis; Linear predictive coding; Magnetic noise; Signal processing; Working environment noise;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications and Information Technologies, 2006. ISCIT '06. International Symposium on

Conference_Location

Bangkok

Print_ISBN

0-7803-9741-X

Electronic_ISBN

0-7803-9741-X

Type

conf

DOI

10.1109/ISCIT.2006.339876

Filename

4141502