ON GPS FORECASTING EPHEMERIS AND CLOCK CORRECTION ACCURACY AND EFFECTS ON STANDARD POINT POSITIONING
Wang Aisheng ;and Wang Fei
School of Geodesy and Geomatic, Jiangsu Normal University, Xuzhou 221116
Abstract Using IGS data and products the forecasted ephemeris accuracy and the forecasted clock correction accuracy as well as the standard single point positioning accuracy during 1995 to 2010 is analyzed. These analyses show that all the accuracy trend to increase gradually, such as the forecast ephemeris accuracy (SISRE) is below 2 m, and the predicted clock correction accuracy is (6-20)×10 -9 s, the standard positioning accuracy is 1.0-7.0 m in the horizontal and 2.5-27.0 m in the vertical.
Key words ：
GPS
real-time serve
broadcast ephemeris
clock correction
SPS(Standard Point Positioning Serve)
Received: 01 January 1900
Corresponding Authors:
Wang Aisheng
Cite this article:
Wang Aisheng,and Wang Fei. ON GPS FORECASTING EPHEMERIS AND CLOCK CORRECTION ACCURACY AND EFFECTS ON STANDARD POINT POSITIONING[J]. , 2012, 32(6): 76-80.
Wang Aisheng,and Wang Fei. ON GPS FORECASTING EPHEMERIS AND CLOCK CORRECTION ACCURACY AND EFFECTS ON STANDARD POINT POSITIONING[J]. jgg, 2012, 32(6): 76-80.
URL:
http://www.jgg09.com/EN/ OR http://www.jgg09.com/EN/Y2012/V32/I6/76
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