地震地磁观测与研究2017，Vol.38Issue(3)：81-87,7.DOI:10.3969/j.issn.1003-3246.2017.03.014
希尔伯特—黄变换在地电阻率数据处理中的应用
Hilbert-Huang transform and its application in earth resistivity data processing
摘要
Abstract
Hilbert-Huang transform is a method for processing nonlinear and non-stationary signals. It is composed of empirical mode decomposition and Hilbert spectrum analysis. In this paper, earth resistivity monthly values recorded by Datong and Baochang seismic stations, earth resistivity hourly ones recorded by Baochang Seismic Station are processed by using Hilbert-Huang transform. It is very important to preprocess the raw data before analyzing the simulation signal with Hilbert-Huang transform. The pretreatment results directly affect the reliability of the results of Hilbert Huang Transformation. Hilbert spectrum of earth resistivity monthly values recorded by Datong and Baochang seismic stations has high resolution characteristics, whose high amplitude in the normalized frequency range of 0.05—0.15 presents "cosine" change shape. Hilbert Huang Transform is very good effect in the extraction of the high frequency information of abnormal change and the removal of noise of earth resistivity, and so on.关键词
希尔伯特—黄变换/EMD/Hilbert谱/地电阻率Key words
Hilbert-Huang transform/EMD/Hilbert Spectrum/earth resistivity引用本文复制引用
张国清,高立新,戴勇,杨彦明,格根..希尔伯特—黄变换在地电阻率数据处理中的应用[J].地震地磁观测与研究,2017,38(3):81-87,7.基金项目
中国地震局地震科技星火计划项目(项目编号:XH17010Y) （项目编号:XH17010Y）
震情跟踪定向工作任务(项目编号:2017010410) （项目编号:2017010410）
内蒙古自治区科技重大专项(强震短临跟踪和空地立体观测技术集成创新) （强震短临跟踪和空地立体观测技术集成创新）
