ERP预报误差对低轨卫星精密轨道预报的影响  

The Impact of ERP Prediction Error on LEO Precise Orbit Prediction

作　　者：张欣欣 王磊 许钡榛 李涛 陈锐志 ZHANG Xinxin;WANG Lei;XU Beizhen;LI Tao;CHEN Ruizhi(State Key Laboratory of Information Engineering in Surveying,Mapping and Remote Sensing,Wuhan University,129 Luoyu Road,Wuhan 430079,China;Geodetic Data Processing Centre of Ministry of Natural Resources,334 East-Youyi Road,Xi’an 710054,China)

机构地区：[1]武汉大学测绘遥感信息工程国家重点实验室,武汉市430079 [2]国家自然资源部大地测量数据处理中心,西安市710054

出　　处：《大地测量与地球动力学》2020年第5期482-485,共4页Journal of Geodesy and Geodynamics

基　　金：国家自然科学基金(41704002)。

摘　　要：结合珞珈一号卫星轨道数据,分析地球自转参数(ERP)预报误差对低轨卫星精密轨道预报的影响。结果表明,ERP预报误差主要对轨道切向和法向产生影响,对径向影响较小。当预报时间为10 d时,切向误差可达到dm级,这对cm级定位会产生较大影响。The impact of ERP prediction error on LEO autonomous orbit determination is analyzed with the orbit data from Luojia-1A satellite.The test results indicate that ERP have a significant impact on the tangent and normal direction,with less impact on the radical direction.With 10-days prediction,the impact on the tangent direction reaches a decimeter level,which will have a major impact on the precise orbit determination.

关 键 词：ERP预报 珞珈一号卫星 自主定轨误差 

分 类 号：P228[天文地球—大地测量学与测量工程]