物探与化探2011，Vol.35Issue(1)：113-117,5.
EMD方法在长周期大地电磁测深资料去噪中的应用
THE APPLICATION OF THE EMD METHOD TO LONG-ERIOD MAGNETOTELLURIC SOUNDING DATA DENOISING
摘要
Abstract
In long-eriod magnetotelluric sounding measurement in the noisy area, the effective suppression of a variety of electromagnetic noises and the improvement of the quality of data constitute the core problem in long period magnetotelluric sounding data acquisition and data processing.As the long-eriod magnetotelluric sounding data are characterized by nonlinear, non-tationary and non-inimum phase, in this paper the authors propose the EMD method to suppress the noise in long-eriod magnetotelluric signals, and deals with the implementation details of the EMD algorithm.The authors applied the EMD algorithm to the long-eriod magnetotelluric signal noise suppression, and the results show that the EMD method can effectively suppress the long-eriod magnetotelluric noise.关键词
长周期大地电磁测深/经验模态分解(EMD)/噪声压制/信号分析分类
天文与地球科学引用本文复制引用
覃庆炎,王绪本,罗威..EMD方法在长周期大地电磁测深资料去噪中的应用[J].物探与化探,2011,35(1):113-117,5.基金项目
国家自然科学基金项目(40839909) （40839909）
