Application of Wavelet Transform In Processing Nature Electromagnetic Field Time Series

详细信息   

• 责任者：Yan Jiabin （School of Info-Physics and Geomatics Engineering ; Central South University ; Changsha 410083 ; China） ; Liu Guizhong
• 刊名：Geology and Prospecting
• 出版年：2008
• 卷期：44(3)
• 关键词：磁大地电流法 ; magnetotelluric methods ; 小波变换 ; wavelet transform
• 页码：p.75-78
• 图表：4 illus., 10 refs.
• 分类号：1600
• issnNo：ISSN0495-5331
• isbnNo：CN11-2043/P

摘要

///Owing to progress and development of modern civilization, impulse-like noise seriously affects steady estimation of impedance response parameter in the electromagnetic exploration. Using features of energy focusing and maximum characteristic of module in the wavelet domain, method removing impulse-like noise with linearity prediction and searching locality of singularity point in the time-frequency domain has got great effects. Processing results of practice data also show that the method is reliable.