利用高频GNSS数据提取地震波信号方法研究  

The Method Study About Extracting the Seismic Wave Signal with High Frequency GNSS Date

作　　者：李新星[1] 林剑[1] 陈正松[1] 

机构地区：[1]中国地震局地震研究所,武汉430071

出　　处：《全球定位系统》2016年第5期75-78,88,共5页Gnss World of China

摘　　要：本文就如何利用高频GNSS数据提取地震波信号进行讨论,选取2011年3月11日日本9.0级地震前后日本境内及周边IGS基准站的高频GNSS数据作为研究对象,首先用TRACK软件对观测站的GNSS数据进行解算,获得相应的位移时间序列,然后利用恒星日滤波算法对所得到的位移时间序列进行去噪,进而获得高精度地震位移波动信号,结果表明,高频GNSS对地震监测是一种有益的补充,对于拓展地震波获取方法以及更深入研究地震信息具有重要意义。In this paper,how to realize the use of high frequency GNSS data to extract the seismic wave signal is discussed.We choose the high frequency GNSS data about the IGS reference stations before and after the Tohoku-oki M9.0earthquake on Mar.11,2011 in Japan and its surrounding as the research object.First of all,we need to use the GNSS observation data with TRACK software to get the corresponding displacement time series.Then deal with the noise of the displacement time series with sidereal filtering algorithm,then we will get the displacement signal,which is a meaningful supplement for deformation monitoring.Using the high frequency GNSS data to extract the seismic wave signal will expand the seismic acquisition method and further research in earthquake and it will be of great significance.

关 键 词：高频GNSS TRACK 恒星日滤波 地震波 

分 类 号：P228.4[天文地球—大地测量学与测量工程]