地震地磁观测与研究2016，Vol.37Issue(6)：95-101,7.DOI:10.3969/j.issn.1003-3246.2016.06.017
地震前兆数据时频分析
Time-frequency analysis application inearthquake precursor data processing
摘要
Abstract
In this paper, time-frequency analysis of the precursor data of cave strain at Wuhai Seismic Station, body strain at Hatuwusu Seismic Station, water level at Sanhaodi well, water level at Dadianzi well, earth resistivity at Wengniute Seismic Station and earth resistivity at Baochang Seismic Station is studied by using smoothed pseudo Wigner-Ville distribution method. Time-frequency result can clearly shows time interval and frequency range of main components and short-term changes of earthquake precursor data. How to select time-frequency method and how to preprocess precursor data will directly affect the time-frequency results.关键词
时频分析/平滑伪魏格纳分布/前兆数据/能量密度Key words
time-frequency analysis/smoothed pseudo Wigner-Ville distribution/precursor data/energy density引用本文复制引用
戴勇,高立新,陈立峰,杨彦明,格根..地震前兆数据时频分析[J].地震地磁观测与研究,2016,37(6):95-101,7.基金项目
中国地震局监测、预测、科研三结合课题（项目编号160504）；震情跟踪定向工作任务 （）
