Abstract
The accuracy of BeiDou GEO satellites precise orbit determination is poor. In addition to high altitude and constant position, the monitoring stations distribution is also an important factor of GEO satellites orbit determination. Firstly, the basic principle of geometry orbit determination is introduced and the observation equation is linearized in this paper. Secondly, The GDOP value is parameterized by using orthogonal trigonometric functions. Thirdly, the relationship between stations distribution and the accuracy of precise orbit determination is analyzed according to nested cones. Finally, the simulation experiments are carried out, and a kind of the optimal solution is concluded.
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