基于误差方程常数项的选权稳健数据处理方法研究  

A weighting method based on the constant items of error equation

作　　者：陈本富[1,2] 杨超 李大军[1] Chen Benfu Yang Chao Li Dajun(Faculty of Geomatics, East China Institute of Technology, Nanchang 344000, China Hunan Tianyuan Land and Resource Reconnaissance Co. , Ltd, Changsha 410007, China)

机构地区：[1]东华理工大学测绘工程学院,南昌344000 [2]湖南天源国土资源勘察有限公司,长沙410007

出　　处：《工程勘察》2017年第11期60-62,共3页Geotechnical Investigation & Surveying

基　　金：国家自然科学基金(41174002)

摘　　要：相对稳健估计选权迭代法中基于观测值首次平差后的残差进行选权迭代,基于误差方程常数项的选权迭代方法将初权的设置于平差前进行,削弱了粗差观测值对其它正常观测值平差后残差的不利影响,提高了测绘数据处理的质量。Comparing with weighting method with the residuals in the robust adjustment, this paper proposes a method for weighting the observations based on the constant items of error equation before the adjustment, which will weaken the effects of mistake measurements and improves the quality of surveying data processing.

关 键 词：稳健估计 选权迭代 误差方程 常数项 

分 类 号：P207.2[天文地球—测绘科学与技术]