Comparison of WHT and HHT methods for analyzing Magnetotelluric signal

Author

Cai, Xinhua ; Cai, Jianhua

Author_Institution

Coll. of Phys. & Electron, Hunan Univ. of Arts & Sci., Changde, China

fYear

2012

fDate

29-31 May 2012

Firstpage

1769

Lastpage

1773

Abstract

For finding better analysis method, Hilbert-Huang transform (HHT) was applied as a tool of time-frequency analysis in Magnetotelluric (MT) signals processing. By means of Wavelet transform (WT) and HHT, a practical MT signal is analyzed and its results are compared from the fields of decomposition and reconstruction, de-noising, time-frequency analysis. From the results, it can be drawn that HHT method is more adaptive than WT analysis in analyzing non-stationary MT signals and will has a wide application on MT signals processing.

Keywords

geophysical techniques; magnetotellurics; HHT method; Hilbert-Huang transform; MT signals processing; WHT method; analysis method; de-noising analysis; decomposition analysis; magnetotelluric signals processing; nonstationary MT signals; reconstruction analysis; time-frequency analysis; Magnetic analysis; Noise reduction; Signal resolution; Time frequency analysis; Wavelet analysis; Wavelet transforms; Empirical mode decomposition; Hilbert-Huang transformation; Magnetotelluric signal; Time-frequency analysis; Wavelet analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Fuzzy Systems and Knowledge Discovery (FSKD), 2012 9th International Conference on

Conference_Location

Sichuan

Print_ISBN

978-1-4673-0025-4

Type

conf

DOI

10.1109/FSKD.2012.6233952

Filename

6233952