基于蛇行变轨的反舰导弹末制导律研究

提出了一种超声速反舰导弹针对海面机动目标的主动蛇行变轨导引设计方案。首先建立了反舰导弹、拦截弹和舰艇在航向平面的运动几何关系模型,然后基于Terminal滑模控制的思想进行了制导律设计,采用约束视线角和视线角速度的方法使反舰导弹在打击舰艇的过程中实现蛇行变轨,以能够规避敌方拦截导弹。仿真结果表明,该制导律具有期望的性能要求。

Research on Anti-Ship Missile Terminal Guidance Laws Based on Variable Trajectory Imitated Serpentine Snake

A new approach about design for missiles guidance laws(GLs) was proposed in this study,which can make anti-ship missile realize variable trajectory imitated serpentine snake against maneuvering targets and interceptors on the sea.Firstly,the relative motive model of the yaw plane was formulated.Next,based on the Terminal sliding mode control theory,the guidance law was designed,and the method of line-of-sight-angle(LOSA) and line-of-sightangle-velocity(LOSAV) constraints was employed to realize the variable trajectory of missile during the course of pursuit.The guidance laws can not only be of stronger robustness against changes of parameters and external disturbance,but also can control the LOSA of missiles.Finally,the simulation results were presented to show the validity of the proposed method.