针对滤波处理所需时间长、准确建立误差模型难的问题,提出了仅对弹道落点预测偏差进行滤波的方法,给出了弹道方程及落点预测方程。关于弹道修正弹飞行过程中弹道经常发生突变及弹载计算机运算能力有限的问题,提出了基于渐消记忆滤波的自适应滤波方法,采用半实物仿真试验和飞行试验对该滤波方法进行了试验验证,结果表明该方法能实现实时滤波,弹道突变时滤波后的预测偏差可保持相对平滑,没有引起发散现象,实用性很强。

Trajectory correction projectiles (TCP) require to predict impact point rapidly for control system design, the truth is that it's impossible to depict real motion of projectile with motion equation. The application of fading memory filter was proposed for impact point prediction. Based on trajectory model and impact point prediction equation, the fading memory filter-based impact point prediction equation was presented. Semi-physical simulation and flight test were carried out based on the method, the results show that the method can filter the date real-time, when the projectile trajectory is corrected, the filtered impact point prediction value will change from one state to another smoothly, it's proved that this method can be used in impact point prediction of TCP.