倾斜转弯导弹的变结构制导律研究  

Research on Variable Structure Guidance Law Based on Trending-law for BTT Missile

作　　者：童春霞[1] 张天桥[1] 

机构地区：[1]北京理工大学机电工程学院,北京100081

出　　处：《弹箭与制导学报》2005年第3期8-11,共4页Journal of Projectiles,Rockets,Missiles and Guidance

摘　　要：以变结构理论为基础,利用变结构控制系统对干扰的不变性,将目标机动看成是未知的有界扰动,通过选择只含有目标视线角速度信息的理想滑动模态,设计了只需目标视线角速度信息的新型变结构比例导引律,实现了在目标机动的条件下,有限时间内目标视线角速度的零化,大幅度地改善了制导性能。文中针对BTT导弹为了在不同方向获得机动能力,必须接受滚动指令并快速滚动,以最大法向气动力对准所需机动方向的特点,分别在纵向平面和横向平面设计了指令加速度形式。该方法直观简单、易于理解、便于工程实现,可以对付高度机动的来袭目标。A variable structure guidance law is proposed based on the variable theory ,and using the robustness of variable control system. The desired sliding mode is only in correlation with the llne of sight. The maneuverability of acceleration of target is regarded as a disturbance with boundary, and the rate of line of sight can be controlled to zero. This guidance law is designed for some BTT missile, and desired accelerations of pitch and yaw are given. This simulation results show that the algorithm has strong robustness and adaptahility.

关 键 词：制导律 变结构控制 BTT导弹 仿真 

分 类 号：TJ765.3[兵器科学与技术—武器系统与运用工程]