基于最小二乘配置的GPS网平差模型及其应用  

The Adjustment Model of GPS Network with Least Squares Collocation

作　　者：姚宜斌[1] 陶本藻[1] 

机构地区：[1]武汉大学测绘学院,湖北武汉430079

出　　处：《测绘学院学报》2003年第1期4-6,共3页Journal of Institute of Surveying and Mapping

基　　金：国家自然科学基金资助项目 ( 4 0 0 0 40 0 1)

摘　　要：从最小二乘配置出发 ,推导了附加先验约束的高精度GPS网平差的参数估计和精度估计公式。分析了先验约束正确与否对平差结果所造成的影响 ,讨论了附加额外约束对平差结果及平差精度可能造成的影响 。Substantively to say, the adjustment model of GPS network with apriori constraint is a kind of Least Squares Collocation model. The formulaes of parameter estimation and precision estimation based on Least Squares Colllocation is presented. The systematical investigates on the influences of apriori coordinate constraint and apriori precision constraint are made. And we also provide a quantity indicating whether an additional constraint is useful or not. Some general principles on the choice of apriori constraint in adjustment is also discussed.

关 键 词：最小二乘配置 平差模型 GPS网 全球定位系统 数据处理 

分 类 号：P228.4[天文地球—大地测量学与测量工程]