长距离动态GPS数据处理在地震监测中的应用研究
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摘要
在介绍利用Track处理长距离动态GPS数据的原理与方法基础之上,本文针对地震监测GPS数据处理,提出了一种新的探测地震主震和余震的历元间求差法.新方法先通过Track解算出较精确的坐标,在相邻历元间求坐标差与计算出的限差进行比较来判断是否发生地震。利用美国圣西蒙GPS地震数据,分析了长距离动态GPS数据处理精度,对历元间求差法探测主震和余震的效果进行了分析和比较,结果表明该方法可以有效探测出主震和及相关余震的发生时间。
Based on the introduction about the principles and methods of processing long range kinematic GPS data using Track,aiming at Seism Monitoring data processing,a new method was proposed called adjacent epoch difference method to detect the earthquake and aftershock in the paper.The method suggested after getting the precise coordinates using Track,by comparing the value of adjacent epoch difference and the tolerance computed to determine whether the earthquake occurred.The American San Simeon earthquake GPS data was used to analyze the accuracy of long range kinematic processing data.The effects of the proposed method were analyzed and compared.Research results showed that the proposed method could efficiently detect the time when earthquake and aftershock happen.
Based on the introduction about the principles and methods of processing long range kinematic GPS data using Track,aiming at Seism Monitoring data processing,a new method was proposed called adjacent epoch difference method to detect the earthquake and aftershock in the paper.The method suggested after getting the precise coordinates using Track,by comparing the value of adjacent epoch difference and the tolerance computed to determine whether the earthquake occurred.The American San Simeon earthquake GPS data was used to analyze the accuracy of long range kinematic processing data.The effects of the proposed method were analyzed and compared.Research results showed that the proposed method could efficiently detect the time when earthquake and aftershock happen.
引文
[1]周忠谟,易杰军,周琪.GPS卫星测量原理与应用[M].北京:测绘出版社,2004:162-163.
[2]郭英.BERNESEV4_2软件的GPS动态定位研究[D].泰安:山东科技大学,2004:21-23.
[3]熊永良.虚拟参考站技术中对流层误差建模方法研究[J].测绘学报,2006,35(2).
[4]Donghyun Kim,Richard B Langley.Recent results oflong-range airborne kinematic GPS positioning researchat the Western Australian Centre for Geodesy.[C]//The 2004 International Symposium on GNSS/GPS S.eny,Australia,6-8 December 2004.
[5]叶世榕.GPS非差相位精密单点定位理论与实现:博士学位论文[D].武汉:武汉大学,2002:20-22.
[6]MAbdel-salam.Precise Piont Positioning Using Un-Differ-enced Code and Carrier Phase Observations:PhD Thesis[D].ALBERTA:UNIVERSITY OF CALGARY,2005:30-43.
[7]黄丁发,熊永良.全球定位系统理论与实践[M].成都.西南交大出版社,2006:85-86.
[8]MassachusetsInstituteofTechnology.TrackVer1.13,2008.
[9]U.S.Geological Survey,Earthquake Hazards Program[EB/OL].(2009-01-09).http://earthquake.usgs.gov/eqcenter/index.php.
[10]Xiaobin,Shen.Improving Ambiguity Convergence in CarrierPhase-based Precise Point Positioning[D].ALBERTA:U-NIVERSITY OF CALGARY,2002:83-88.
[11]孙祥娥.地震波速度求取若干问题:博士学位论文[D].成都:成都理工大学,2007:80-90.
[2]郭英.BERNESEV4_2软件的GPS动态定位研究[D].泰安:山东科技大学,2004:21-23.
[3]熊永良.虚拟参考站技术中对流层误差建模方法研究[J].测绘学报,2006,35(2).
[4]Donghyun Kim,Richard B Langley.Recent results oflong-range airborne kinematic GPS positioning researchat the Western Australian Centre for Geodesy.[C]//The 2004 International Symposium on GNSS/GPS S.eny,Australia,6-8 December 2004.
[5]叶世榕.GPS非差相位精密单点定位理论与实现:博士学位论文[D].武汉:武汉大学,2002:20-22.
[6]MAbdel-salam.Precise Piont Positioning Using Un-Differ-enced Code and Carrier Phase Observations:PhD Thesis[D].ALBERTA:UNIVERSITY OF CALGARY,2005:30-43.
[7]黄丁发,熊永良.全球定位系统理论与实践[M].成都.西南交大出版社,2006:85-86.
[8]MassachusetsInstituteofTechnology.TrackVer1.13,2008.
[9]U.S.Geological Survey,Earthquake Hazards Program[EB/OL].(2009-01-09).http://earthquake.usgs.gov/eqcenter/index.php.
[10]Xiaobin,Shen.Improving Ambiguity Convergence in CarrierPhase-based Precise Point Positioning[D].ALBERTA:U-NIVERSITY OF CALGARY,2002:83-88.
[11]孙祥娥.地震波速度求取若干问题:博士学位论文[D].成都:成都理工大学,2007:80-90.
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