天文学进展2023，Vol.41Issue(4)：558-568,11.DOI:10.3969/j.issn.1000-8349.2023.04.07
北斗三号实时精密轨道钟差估计及精度效率评定
Real-time Precise Orbit and Clock Estimation for BDS-3 Constellation:Accuracy and Efficiency Assessment
摘要
Abstract
BeiDou navigation satellite system(BDS)is an independent global navigation satellite system(GNSS)developed by China.The three-step strategy was adopted from the very beginning and the third and final step,BDS-3,had been officially announced opera-tional on July 31,2020.An essential and necessary task is to generate precise orbit and clock products in real time,only in this way can BDS-3 constellation be ready for widespread use from ordinary to high-precision real-time applications.In this work,keeping accuracy and efficiency in mind,several experiments are conducted to find an adequate size of tracking networks.It is shown that,up to 60 stations,the accuracy of BDS-3 orbit and clock products can not be improved by increasing the number of tracking stations.Further accuracy im-provements should depend on solving some modelling defects such as lack of antenna phase center corrections and imperfection of solar radiation pressure models.关键词
北斗三号/全球卫星导航系统/轨道确定/钟差估计Key words
BDS-3/GNSS/orbit determination/clock estimation分类
天文与地球科学引用本文复制引用
柳培钊,陈俊平..北斗三号实时精密轨道钟差估计及精度效率评定[J].天文学进展,2023,41(4):558-568,11.基金项目
上海市优秀学术带头人计划(20XD1404500) （20XD1404500）
国家自然科学基金(11673050) （11673050）
