大地测量与地球动力学2017，Vol.37Issue(12)：1263-1267,5.DOI:10.14075/j.jgg.2017.12.012
北斗三期试验卫星精密定轨及对PPP定位影响的分析
Precise Orbit Determination for Beidou-3 Experimental Satellites and Its Impact on PPP
摘要
Abstract
In this paper,we determine precise orbit and clock of Beidou-3 experimental satellites based on data from several tracking networks.The results indicate that the orbit overlap accuracy in radial direction of Beidou-3 experimental satellites is better 7.0 cm for IGSO satellites and 5.3 cm for MEO satellites,respectively,which is equivalent to that of the Beidou-2 of non-GEO satellites.In addition,solutions of static precise point positioning (PPP) show that better than 1 cm in horizontal and 2.6 cm in vertical direction can be achieved when orbit and clock products of the Beidou-3 experiential satellites are included.Compared to the Beidou-2 only PPP solutions,the results are improved by 0.5 cm and 1.2 cm respectively,and speed up the convergence rate,reducing convergence time by about 2 h 35 min.关键词
北斗/试验卫星/PANDA/精密定轨/精密单点定位Key words
Beidou/experimental satellites/PANDA/precise orbit determination/precise point positioning分类
天文与地球科学引用本文复制引用
郭慧军,郭靖,赵齐乐,王晨..北斗三期试验卫星精密定轨及对PPP定位影响的分析[J].大地测量与地球动力学,2017,37(12):1263-1267,5.基金项目
国家自然科学基金(41574030).National Natural Science Foundation of China,No.41574030. （41574030）
