利用雷达测高仪的卫星自主定轨

AUTONOMOUS ORBIT DETERMINATION WITH RADAR ALTITUDE SENSOR

提出了利用星上雷达测高仪及星敏感器进行卫星自主定轨的基本方法。研究了地球海平面模型的重要性， 提出了对测高仪测量数据处理的简明算法， 利用滤波定轨算法， 明显提高自主定轨的精度， 数学仿真表明自主定轨精度可达１００ 米。

This paper studies a basic method of the autonomous orbit determination with radar altitude and star sensors.With sea level model,a simply method for modifying the influence of earth shape has been presented.Direct and Kalman filter orbit determination methods have been studied.The simulation results show that precision of orbit determination is about 100 meter.