为提高椭圆轨道落点预测精度,提出了基于光测数据的落点预测方法。首先介绍了椭圆轨道运动的约束条件,然后建立了基于轨道约束自校准技术的落点预测算法模型,最后给出了典型情况下的落点预测仿真结果。仿真结果表明:采用光测数据进行椭圆轨道的落点预测是可行的,通过轨道约束自校准技术可以对光测设备系统误差进行高精度校准,提高了椭圆轨道落点预测精度。

In order to improve the precision of impact point prediction of elliptical orbit, a method of impact point prediction based on optical measurement data was presented. Firstly, the constraint conditions of elliptical orbit was introduced. Then, the algorithm model of impact point prediction based on the technology of orbit restrain self-calibration was set up. Finally, the simulation results of impact point prediction in typical cases were supplied. The simulation results show that the prediction method based on the optical measurement data is feasible, the systematic errors of device can be precisely calibrated by the technology of orbit restrain self-calibration, and the precision of impact point prediction can be improved.