STANDARDIZATION OF GPS SATELLITE ORBITS BASED ON MOVING INTERVALS
Chang Liang; and He Xiufeng
Institute of Satellite Navigation and Spatial Information System of Hohai University,Nanjing 210098
Abstract It is found that when conventional methods,such as Trigonometric Interpolation,are used for standardization of GPS satellite orbits, and the order of interpolation or fitting increases, the accuracy will decrease. Thus, a conception of moving intervals is proposed solving this problem. The results from computing and analyzing the precise ephemeris supplied by National Geodetic Survey of U.S. as an example show that this standardization method based on the moving intervals can solve the problem on accuracy decreasing i.e.,as the order increases, in the same time, the accuracy of standardizing GPS satellite orbits is improved to the level of subcentimeter.
Key words ：
GPS
orbits standardization
interpolation
moving intervals
ephemeris
Received: 01 January 1900
Corresponding Authors:
Chang Liang
Cite this article:
Chang Liang,and He Xiufeng. STANDARDIZATION OF GPS SATELLITE ORBITS BASED ON MOVING INTERVALS[J]. , 2009, 29(1): 110-113.
Chang Liang,and He Xiufeng. STANDARDIZATION OF GPS SATELLITE ORBITS BASED ON MOVING INTERVALS[J]. jgg, 2009, 29(1): 110-113.
URL:
http://www.jgg09.com/EN/ OR http://www.jgg09.com/EN/Y2009/V29/I1/110
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