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弹目遭遇末端目标至脱靶点剩余飞行时间的估算对起爆控制来说是非常重要的。本文详细讨论了脱靶情况下距离未知或丢失时 ,如何利用导引头测得的角度和角速度信息预测剩余飞行时间以及其它参数。结果表明对于非机动目标 ,文中方法估计的剩余飞行时间及其它参数没有误差 ;目标机动能力的增加会导致预测误差变大 ,但是随着导弹逐渐接近目标以及剩余飞行时间的减小 ,预测精度也会逐渐提高。考虑到允许的起爆延时误差 ,目标机动对剩余飞行时间估计的影响是很小的
Estimation of the remaining flight time of the projectile encountering the terminal target to the off-target is very important for initiation control. This paper discusses in detail how to predict the remaining flight time and other parameters by using the angle and angular velocity information of the seeker when the distance is unknown or lost in the off-target situation. The results show that for the non-maneuvering target, there is no error in the remaining flight time and other parameters estimated by this method. The increase of target maneuvering ability leads to larger prediction error. However, as the missile approaches the target gradually and the remaining flight time decreases, Will gradually increase. Considering the allowable initiation delay error, the impact of the target maneuver on the estimation of the remaining flight time is very small