%0 Journal Article
%T ERROR ANALYSIS OF ORBIT DETERMINED BY GPS BROADCAST EPHEMERIS<br>GPS广播星历的轨道误差分析
%A Li Zhenghang
%A Ding Wenwu
%A Li Zhao
%A <br>李征航
%A 丁文武
%A 李 昭
%J 大地测量与地球动力学
%D 2008
%I 
%X The variations of orbit error of GPS broadcast ephemeris from 2002 to 2006 are analyzed, and some effects on the orbit accuracy are discussed.The results show that the orbit accuracy of GPS broadcast ephemeris in 2006 was much better than that in 2002 especially after the implementation of L-AII project.
%K GPS broadcast ephemeris
%K precise ephemeris
%K orbit error
%K L-AII project
%K root mean square error<br>GPS广播星历
%K 精密星历
%K 轨道误差
%K L-AII计划
%K 均方根差
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=E62459D214FD64A3C8082E4ED1ABABED5711027BBBDDD35B&cid=DA72A78627FE64EAA572951EA05D274A&jid=73A1A428591E600EF664B596512A2997&aid=77FBB4795E4679DB2464242BA3AC5B9D&yid=67289AFF6305E306&vid=D3E34374A0D77D7F&iid=CA4FD0336C81A37A&sid=771152D1ADC1C0EB&eid=318E4CC20AED4940&journal_id=1671-5942&journal_name=大地测量与地球动力学&referenced_num=1&reference_num=13