Geosat卫星定轨中的大气阻力摄动

ATMOSPHERIC DRAG PERTURBATION IN ORBIT DETERMINATION FOR GEOSAT SATELLITE

在利用卫星测高资料定轨的过程中，大气阻力摄动的影响较大。本文在比较几种常用大气密度模型误差对定轨影响的基础上，将密度改正公式引入到Geosat卫星的精密定轨中。结果显示，该公式可以有效地提高卫星的径向定轨精度。

The atmospheric drag perturbation is very important in orbit determination usingsatellite a1timeter data. This paper introduces the formula for atmospheric density correctioninto the precision orbit determination for Geosat satellite, based on the comparisons of theeffects of various usual atmospheric density models in orbit determination. The results showthat the formula can raise the radial precision of satellite orbit determination significantly.