ANALYSIS OF PRECISION OF POSITION VELOCITY AND CLOCK OF
GPS SATELLITES BROADCAST EPHEMERIS
1）Chinese Academy of Surveying and Mapping，Beijing 100830
Abstract The accuracy of satellite position，velocity and clock errors of global positioning system(GPS）broadcast ephemeris were analyzed in the paper.The results reveal orbits errors are less than 2 m，mean value and rootmeansquare(RMS）of satellite clocks are less than 8 ns，velocity errors less than 0.5 m/s and signalinspace range error(SISRE）less than 2.5 m.Compared with the consquence in 2006，positions，velocities and clocks are improved.
Key words ：
GPS broadcast ephemeris
precise ephemeris
orbit errors
clock bias
SISRE
Received: 20 September 2013
Published: 28 May 2014
Cite this article:
Wang Xiaying,Bei Jinzhong,Zhang Decheng et al. ANALYSIS OF PRECISION OF POSITION VELOCITY AND CLOCK OF
GPS SATELLITES BROADCAST EPHEMERIS[J]. jgg, 2014, 34(3): 164-168.
Wang Xiaying,Bei Jinzhong,Zhang Decheng et al. ANALYSIS OF PRECISION OF POSITION VELOCITY AND CLOCK OF
GPS SATELLITES BROADCAST EPHEMERIS[J]. jgg, 2014, 34(3): 164-168.
URL:
http://www.jgg09.com/EN/ OR http://www.jgg09.com/EN/Y2014/V34/I3/164
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