江苏省CORS系统解算中IGS基准站选取的研究  

Selection of IGS reference stations in data processing of Jiangsu CORS

作　　者：赵倩[1] 沈飞[2] 

机构地区：[1]武汉大学卫星导航定位技术研究中心,武汉430079 [2]江苏省测绘局测绘工程院JSCORS中心,南京210013

出　　处：《测绘科学》2011年第6期124-125,76,共3页Science of Surveying and Mapping

基　　金：国家"863"计划(2007AA12Z312)

摘　　要：本文针对江苏连续运行参考站网(以下简称江苏CORS)数据处理中IGS基准站的选取问题,简要介绍了数据处理软件GAMIT,探讨了选取IGS基准站的方位分布对基线解算结果U方向的影响以及IGS站数量的选取对江苏CORS网解算精度的影响。通过实验证明,在本文给出的GAMIT解算策略下,选择北半球较高纬度的IGS基准站与江苏CORS网联测,会在其基线U方向得到较好的精度结果;在整体解算时,一般加入3～4个靠近CORS网的IGS站就可以得到2mm～6mm的基线解算精度。The selection of IGS reference stations in data processing of Jiangsu Continuously Operating Reference Stations network （JS CORS） was investigated in this paper. Firstly, high-precision data processing software GAMIT was briefly introduced. Then several processing strategies were designed. Numerical calculation showed that adding IGS reference stations located in Northern Hemisphere at high latitude would obtain better accuracy in the U-direction of baselines, while 3 to 4 IGS stations around CORS would achieve the accuracy of 2mm- 6mm in the simultaneous solution.

关 键 词：江苏CORS IGS基准站 数据处理 基线精度 

分 类 号：P227.1[天文地球—大地测量学与测量工程]