测绘科学技术学报2013，Vol.30Issue(2)：132-135,4.DOI:10.3969/j.issn.1673-6338.2013.02.006
抗差方差分量估计在GPS/GLONASS组合导航中的应用
Applications of Robust Variance Component Estimation in GPS/GLONASS Integrated Navigation
摘要
Abstract
When using the GPS/GLONASS combined navigation,the reasonable fixed weight and adjustment calculation should be carried on in the combined solution by variance component estimation due to the different location precision of satellite system.However,it is unable to resist the influence of gross error by using the least squares estimation of variance components,if the GPS,GLONASS observations contain gross errors and it will reduce the accuracy and reliability of the adjustment results.The robust estimation inethod based on IGGⅢ equivalent weight function was introduced in this paper.Calculation and analysis of the measured data for GPS / GLONASS proved that this was a feasible and effective method.关键词
GPS/GLONASS组合导航/方差分量估计/粗差/抗差估计/IGGⅢ等价权函数Key words
GPS/GLONASS integrated navigation system/ variance components estimation/ gross error/ robust estimation/ IGGⅢ equivalent weight function分类
天文与地球科学引用本文复制引用
张勇,田林亚,徐君民,杨建中,产光杰..抗差方差分量估计在GPS/GLONASS组合导航中的应用[J].测绘科学技术学报,2013,30(2):132-135,4.基金项目
铁道部科技研究开发计划项目(2012G009-C). （2012G009-C）
