飞行器弹道重建方法改进

基于飞行器的惯性测量数据，根据运动动方程，对弹道进行重建。为进一步限制误差的传播，利用遥测记录的时间步长较大的弹道数据，采用正向配点法和反向配点法进行弹道重建，并在重建弹道数据和遥测弹道数据的相关性的基础上，对正向配点法和反向配点法的计算结果进行加权平均。仿真结果表明，加权改进的方法精度更高。

Improved Method of Aircraft＇s Trajectory Reconstruction

Based on the equation of aircraft motion,this article reconstructs the trajectory by using inertial measurement data. Furthermore, to inhibit error propagation, the article makes use of large step trajectory data. Firstly,the trajectory is reconstructed by using of the forward colloca- tion method and backward collocation method. On considering the correlation between the telemetry data and reconstructed data, this article weights the mean results of the two methods. It is proved that the improved method is more accurate.