我国天文大地网与GPS2000网联合平差单区平差处理方法研究  

The data processing method in single area of Space network and Astro-geodetic network combined adjustment

作　　者：秘金钟[1] 成英燕[1] 程鹏飞[1] 

机构地区：[1]中国测绘科学研究院

出　　处：《测绘科学》2007年第5期32-33,共2页Science of Surveying and Mapping

基　　金：国家测绘局基础测绘项目(1469990324214)

摘　　要：我国天文大地网与GPS2000网联合平差是一项大规模的测量数据处理工程,解算的未知数众多,为了便于检查原始观测数据粗差以及验证地面网与空间网的权匹配关系,需要进行单区平差数据处理研究和计算。本文主要讨论单区平差数据处理中的主要模型、大规模稀疏矩阵有效的解算方法并用软件加以实现,用此软件对5000点的实验区数据进行平差计算,得到了有益的结论。The Space network and Astro-geodetic network combined adjustment in China is a huge engineering of data processing,and unknown parameters are much more.For checking gross error of raw observation data and testifying weight matching relations of Space network and Astro-geodetic network,the research and calculation of data processing in single area are needed.The paper mainly discusses the math model,the effective solution method of large scale sparse matrix in data processing of combined adjustment,and develops a combined adjustment software.With 5000 points observation data as experimental data,a useful conclusion can be obtained.

关 键 词：联合平差 天文大地网GPS2000 单区平差 

分 类 号：P22[天文地球—大地测量学与测量工程]