PRECISE ORBIT DETERMINATION OF LOW EARTH ORBIT SATELLITE AND GPS SATELLITE BASED ON COMBINEDORBIT DETERMINATION STRATEGY
Kuang Cuilin 1) ; Liu Jingnan 2) ; and Zhao Qile 2)
1)Department of Survey Engineering and Geomatics, Central South University, Changsha 4100832)GNSS Research Center, Wuhan University, Wuhan 430079
Abstract The combined orbit determination method for low earth orbit satellite and GPS satellite using ground and spacebased GPS tracking data is studied. Some tests were designed according to different number and distribution of ground GPS tracking stations and implemented by use of PANDA (Positioning And Navigation Data Analysis) software. Numerical results show that better orbit precision with the method can be obtained as compared to “twostep orbit determination method”, because this method profits from the low earth orbit satellite which has greatly enhanced the spatial measurement geometry.
Key words ：
precise orbit determination
CHAMP
GRACE
GPS
combined orbit determination
Received: 01 January 1900
Corresponding Authors:
Kuang Cuilin
Cite this article:
Kuang Cuilin ,Liu Jingnan ,and Zhao Qile . PRECISE ORBIT DETERMINATION OF LOW EARTH ORBIT SATELLITE AND GPS SATELLITE BASED ON COMBINEDORBIT DETERMINATION STRATEGY[J]. , 2009, 29(2): 121-125.
Kuang Cuilin ,Liu Jingnan ,and Zhao Qile . PRECISE ORBIT DETERMINATION OF LOW EARTH ORBIT SATELLITE AND GPS SATELLITE BASED ON COMBINEDORBIT DETERMINATION STRATEGY[J]. jgg, 2009, 29(2): 121-125.
URL:
http://www.jgg09.com/EN/ OR http://www.jgg09.com/EN/Y2009/V29/I2/121
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