基于小波和曲线拟合对瞬变电磁信号去噪的优化  

Composite method of denoising of transient electromagnetic signal

作　　者：裘伟[1] 李享元[1] 程衍富[1] 

机构地区：[1]中南民族大学电子信息工程学院

出　　处：《现代电子技术》2014年第11期61-64,共4页Modern Electronics Technique

基　　金："十二五"国家重大科技支撑计划"煤矿突水;火灾等重大事故防治关键技术及装备研发"项目基金资助:瞬变电磁法理论和相关仪器开发研究

摘　　要：瞬变电磁信号容易受到各种噪声的干扰,造成数据处理时分辨率较低,导致异常解释信息,影响后续工作进程。因此,必须选取合适的方法对其进行去噪处理。本文针对瞬变电磁信号的特点利用小波去噪法的优点在噪声中提取有效信号,进而利用曲线拟合对提取的信号做进一步的优化以便得出可靠的解释结果。TEM signal is easy to subject to the interference of various noises,which results in lower resolution of data pro-cessing,abnormal interpreting information and great effects on the subsequent processes. Therefore,a appropriate method must be selected for its denoising. In this paper,the advantage of wavelet denoising method is adopted to extract the effective signal from noise according to the characteristics of transient electromagnetic signals,and then the curve fitting is used to perform the further optimization for the extracted signal so as to obtain a reliable interpretation.

关 键 词：瞬变电磁信号 勘探 去噪 数据解释 

分 类 号：TN911.734[电子电信—通信与信息系统]