BDS/GPS组合静态相对定位算法探讨  

Discussion on static relative positioning algorithm of combined BDS/GPS

作　　者：王趁香 葛茂荣 祝会忠[1] 高猛[1] 

机构地区：[1]辽宁工程技术大学测绘与地理科学学院,辽宁阜新123000 [2]德国GFZ地学研究中心,波茨坦a1714473

出　　处：《导航定位学报》2017年第2期93-97,102,共6页Journal of Navigation and Positioning

基　　金：国家自然科学基金资助项目(41504010);辽宁省高校团队创新项目(LT2015013);2014年辽宁省博士启动基金项目(20141141);辽宁省科技厅博士启动基金项目(201501126);辽宁省教育厅科学研究一般项目(L2014139);国家青年基金项目(41504030)

摘　　要：为了进一步提高BDS/GPS双系统静态相对定位的精度,提出BDS/GPS静态相对定位的数学模型并分析其参数估计、误差处理、组合观测值优化过程,然后通过矩阵变换对实测数据进行处理和分析,同时利用GNSS三频载波相位观测量来提高整周模糊度确定效率、周跳探测及定位的精度。实验结果表明:BDS相对定位精度可达mm级,与GPS定位精度相当;BDS/GPS组合系统相对定位较单系统定位误差小,且稳定性好。In order to further improve the accuracy of the static relative positioning of BDS/GPS double system, the paper proposed the mathematical model of the relative positioning, analyzed the process of parameter estimation, error handling, and combination observations optimization, and handled the measure data through matrix transformation, then used GNSS triple frequency carrier phase to improve the determination of integer ambiguity and the accuracy of cycle slip detecting and positio- ning. Experimental result showed that the relative positioning accuracy of BeiDou system could reach mm level, comparable to that of GPS~ while the relative positioning accuracy of BDS/GPS combined system would be better than that of single system, with good stability.

关 键 词：组合观测值优化 矩阵变换 GNSS三频载波相位 整周模糊度 

分 类 号：P228[天文地球—大地测量学与测量工程]