桂林理工大学学报2013，Vol.33Issue(1)：37-44,8.DOI:10.3969/j.issn.1674-9057.2013.01.007
基于经验模态分解的瞬变电磁信号的属性提取与分析解释
Transient Electromagnetic Signals Attribute Extraction and Analysis Based on Empirical Mode Decomposition
摘要
Abstract
Only time domain TEM analysis and interpretation of data are not sufficient,frequency components of the signal should be also utilized for analysis and interpretation.This article introduces the Hilberlt-Huang transform analysis of transient eletromagnetic signals.The noise of the transient electromagnetic signal decomposes into a number of intrinsic mode function through EMD,then extracts from intrinsic mode function of the instantaneous amplitude and instantaneous frequency.Each measuring point of the instantaneous attributes combines instantaneous amplitude drawing and instantaneous frequency section profile.Different structural features of geological in profile are obviously abnormal amplitude and frequency of anomalies.A variety of models and practical examples of the calculations show that HHT method can extract instantaneous attributes of transient electromagnetic signals with clear and high resolution,significantly better than conventional TEM analysis and interpretation.关键词
瞬变电磁信号/Hilbert-Huang变换/经验模态分解/瞬时频率/瞬时振幅Key words
transient electromagnetic signal/ Hilbert-Huang transform/ empirical mode decomposition/ instantaneous frequency/ instantaneous amplitude分类
天文与地球科学引用本文复制引用
梁明,张小路,邹仁辉..基于经验模态分解的瞬变电磁信号的属性提取与分析解释[J].桂林理工大学学报,2013,33(1):37-44,8.基金项目
国家"十一五"科技支撑计划项目(2006BAB01B08) （2006BAB01B08）
