摘要
推导了差分VLBI(ΔDOR)用于月球探测器定位的数学模型,利用嫦娥一号实测数据对探测器的位置和地球自转参数(ERP)同时进行了解算,并分析了ERP先验精度对定位精度的影响。
The differential VLBI model used for Lunar probe positioning is derived.CE-1＇s data is used to estimating ERP as well as positioning.The results show that：① The ERP＇s precision has a great influence to the probe positioning accuracy,and the increasing of ERP accuracy can help to improve the positioning accuracy of the probe.② The ERP＇s precision can be improved by estimating probe＇s position and ERP parameters simultaneously with the ΔDOR observations between the CE-1 Lunar probe and a reference radio source.
出处
《武汉大学学报（信息科学版）》
EI
CSCD
北大核心
2011年第11期1324-1327,1387,共4页
Geomatics and Information Science of Wuhan University
基金
国家863计划资助项目(2008AA12Z308)
国家自然科学基金资助项目(40974003)
