小波方法在地电场干扰处理中的分析研究

Abstract

Abstract: Based on the analysis of the characteristics of geoelectric field signals and artificial electricity signals in apparent resistivity measurements in time domain and frequency domain, a new method of wavelet domain threshold de-noising is proposed in this paper. This method was applied to processing the geoelectric field signals added by simulated artificial electricity signals in laboratory. It is showed that in the experiments this method has good performance and the filtering error is within the allowed range of geoelectric field observation.

Key words: Geoelectric field, Apparent resistivity, Artificial electric interference, Wavelet transform

CLC Number:

P315.7

QIU Ying, XI Ji-lou. Research on Removing Noises in Geoelectric Field Observation Using Wavelet Transform[J]. EARTHQUAKE, 2009, 29(2): 57-63.

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Research on Removing Noises in Geoelectric Field Observation Using Wavelet Transform

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