高精度GPS网数据处理中的系统误差分析

基金项目: 国家自然科学基金资助项目(40004001);教育部优秀青年教师基金资助项目(大地测量反演理论及在中国地壳研究中的应用)。

详细信息

The Systematical Error Analysis of High Precision GPS Network Adjustment

1 GPS Research Center, Wuhan University, 129 Luoyu Road, Wuhan, China, 430079;
2 Presidential Secretariat, Wuhan University, Luojia Hill, Wuhan, China, 430072;
3 School of Geodesy and Geomatics, Wuhan University, 129 Luoyu Road, Wuhan, China, 430079

摘要: 分析了高精度GPS网系统误差产生的原因和分类,推导了消除和估计GPS网系统误差的整体平差函数模型。
- GPS数据分析 /
- 系统误差分析 /
- 基准
Abstract: Usually the high precision GPS network lasts two or more years.In this period the GPS observation epoch,GPS satellite situation,GPS receivers,observing environment,the reference frame of ephemeris and even the surveying standard have changed,which will cause complex systematical errors.In this paper,all kinds of systematical errors of stochastic model in adjustment are discussed in details.And the relative adjustment model to estimate the systematical error parameters is established.In practice,the whole network is usually divided into some sub-nets,and each sub-net must have some systematical errors.With the different systematical errors,the theoretical estimation model,relative arithmetic and the statistical proof-test methods of systematical error parameters are also discussed in details.
- GPS data analysis /
- systematical error analysis /
- datum