历元间差分精密单点定位的精度分析  

Precision analysis of precise point positioning based on the epoch-difference model

作　　者：范士杰 牟春霖 刘焱雄[2] 陈冠旭 秦学彬 

机构地区：[1]中国石油大学地球科学与技术学院,山东青岛266580 [2]国家海洋局第一海洋研究所,山东青岛266061 [3]东方地球物理公司装备服务处测量服务中心,天津300280

出　　处：《测绘科学》2016年第1期122-126,共5页Science of Surveying and Mapping

基　　金：国家自然科学基金项目(41274011;41374044)

摘　　要：针对历元间差分精密单点定位技术用于地表形变监测的可行性问题,该文利用IGS跟踪站数据,对此方法的精度进行分析:借助自编程序,对IGS跟踪站不同采样率数据进行动态模拟的数据处理和误差统计,对历元间差分精密单点定位技术的精度进行比较和初步分析,验证GPS数据采样率对该技术定位精度的影响。实验结果表明,此方法能够满足地震等地质灾害引起的同震地表形变监测的精度要求。In order to discuss the possibility to applying the Precise Point Positioning based on epochdifference model in ground surface deformation monitoring,the paper analyzed the accuracy of the proposed method by using the data of IGS tracking stations：with the help of self-developed program,the processing with different sampling data in dynamic simulation and error statistics were carried out;the precision of based on epoch-difference model was analyzed preliminarily,and the influences of GPS data sampling on the precision of were verified finally.Experimental result showed that the method could meet the precision requirement on co-seismic ground deformation monitoring caused by geological disasters such as earthquake.

关 键 词：历元间差分 精密单点定位 坐标变化 地表形变监测 

分 类 号：P208[天文地球—地图制图学与地理信息工程]