GENG Tao, ZHAO Qile, LIU Jingnan, LI Guopeng. Regional Orbit Determination of Navigation Satellite Based on Global Priori Information[J]. Geomatics and Information Science of Wuhan University, 2010, 35(4): 491-494.
Citation:
GENG Tao, ZHAO Qile, LIU Jingnan, LI Guopeng. Regional Orbit Determination of Navigation Satellite Based on Global Priori Information[J]. Geomatics and Information Science of Wuhan University, 2010, 35(4): 491-494.
GENG Tao, ZHAO Qile, LIU Jingnan, LI Guopeng. Regional Orbit Determination of Navigation Satellite Based on Global Priori Information[J]. Geomatics and Information Science of Wuhan University, 2010, 35(4): 491-494.
Citation:
GENG Tao, ZHAO Qile, LIU Jingnan, LI Guopeng. Regional Orbit Determination of Navigation Satellite Based on Global Priori Information[J]. Geomatics and Information Science of Wuhan University, 2010, 35(4): 491-494.
1Research Center of GNSS, Wuhan University, 129 Louyu Road, Wuhan 430079, China;2The First Geodetic Surveying Brigade of SBSM, 4 Cehui Road, Xi'an 710054, China
To satisfy the construction of CHINA Real-Time Precise Positioning Service System, a method of orbit determination of navigation satellite based on priori global information (predicted orbit) is developed. The key is that how the weighting matrices of priori information are computed. Firstly its mathematic model is expressed. Then the characterization of predicted orbit error is analyzed, and a method of achieving the priori information's weighting matrices by Gauss-Markov process is addressed. At last orbit is determined combining the priori information and regional tracking stations' data. Experiment proves that this method is feasible and gets relatively encourage result.
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