何星仪,徐爱功,祝会忠,杨虎,唐龙江

• 1:辽宁工程技术大学

摘要(Abstract)：

针对北斗卫星广播星历长时间序列精度变化的问题,采用SLR观测数据作为外部检核手段对2013年2月至2019年12月4颗BDS-2卫星和2018年8月至2019年12月4颗BDS-3卫星广播星历轨道精度进行评价与分析,其中BDS-2卫星广播星历精度均优于0.700 m, BDS-3卫星C20和C21优于0.500 m, C29和C30优于0.300 m;卫星进入地影期后,C01卫星广播星历精度下降0.036 m, BDS-2 IGSO/MEO卫星下降幅度最大为0.274 m, BDS-3卫星最大为0.070 m; IGSO/MEO卫星姿态控制模式转换后,BDS-2卫星下降幅度最大为0.265 m, BDS-3卫星最大为0.139 m。实验结果表明:地影期前后,BDS-2 IGSO/MEO卫星轨道精度下降最为明显,地影期偏航模式的改变对BDS-2卫星的影响大于BDS-3。

关键词(KeyWords)： 北斗二号;北斗三号;卫星激光测距;广播星历

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(41904037);; 国家重点研发计划项目(2016YFC0803102);; 辽宁省重点研发计划项目(2020JH2/10100044)

作者(Author): 何星仪,徐爱功,祝会忠,杨虎,唐龙江

DOI: 10.16251/j.cnki.1009-2307.2021.07.003

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