ERROR ANALYSIS OF ORBIT DETERMINED BY GPS BROADCAST EPHEMERIS
Li Zhenghang;Ding Wenwu ;and Li Zhao
School of Geodesy and Geomatics, Wuhan University, Wuhan 430079
Abstract 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.
Key words ：
GPS broadcast ephemeris
precise ephemeris
orbit error
L-AII project
root mean square error
Received: 01 January 1900
Corresponding Authors:
Li Zhenghang
Cite this article:
Li Zhenghang,Ding Wenwu,and Li Zhao. ERROR ANALYSIS OF ORBIT DETERMINED BY GPS BROADCAST EPHEMERIS[J]. , 2008, 28(1): 50-54.
Li Zhenghang,Ding Wenwu,and Li Zhao. ERROR ANALYSIS OF ORBIT DETERMINED BY GPS BROADCAST EPHEMERIS[J]. jgg, 2008, 28(1): 50-54.
URL:
http://www.jgg09.com/EN/ OR http://www.jgg09.com/EN/Y2008/V28/I1/50
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