电视制导侵彻炸弹落角约束变结构制导律  

Variable-structure Guidance Law with Terminal Angular Constraint of Video-guided Penetrating Bomb

作　　者：刘永善[1] 贾庆忠[1] 刘藻珍[1] 

机构地区：[1]北京理工大学机电工程学院,北京100081

出　　处：《弹道学报》2006年第2期9-14,共6页Journal of Ballistics

摘　　要：针对电视制导侵彻炸弹需要控制弹着角的要求,研究了具有末端落角约束的变结构制导律.该制导律包含了重力对弹道法向加速度的影响,将制导指令经过一阶低通滤波器滤波,实现对弹体攻角的估计.通过数学仿真,讨论了制导律参数对制导效果的影响,检验了制导律在不同投弹条件和不同期望落角下的制导效果.仿真结果表明,所采用的攻角估计方法是可行的,该制导律能够满足侵彻炸弹在攻击固定目标时对脱靶量和弹着角的双重要求.According to the problem that terminal angular of video-guided penetrating bomb was required to be controlled, the variable-structure guidance law with terminal angular constraint was derived, which included the influence of the gravity on the normal acceleration of trajectory. The angle-of-attack was estimated by the method that the guidance instruction passed through a first order low pass filter. Through computer simulation, the influence of the guidance law parameters on the guidance performance was discussed. The effect of guidance law was tested under the conditions of different bomb release method and different expected impact angle. The simulation shows that the angle-of-attack estimation method is feasible, and that the guidance law can meet the demands of terminal miss distance and impact angle when the penetrating bomb attacks a fixed target.

关 键 词：电视制导 侵彻炸弹 末端落角约束 变结构 制导律 

分 类 号：TJ765[兵器科学与技术—武器系统与运用工程]