考虑速度时变的多约束攻击时间控制制导律  

Multi-constraint Impact Time Control Guidance Law Under Time-varying Velocity

作　　者：阮聪 温求遒[1] 孙国鑫 Ruan Cong;Wen Qiuqiu;Sun Guoxin(School of Aerospace Engineering,Beijing Institute of Technology,Beijing 100081,China)

机构地区：[1]北京理工大学宇航学院,北京100081

出　　处：《战术导弹技术》2020年第3期59-65,共7页Tactical Missile Technology

摘　　要：针对常规制导弹药的协同饱和攻击问题,提出了一种速度不可控情况下的考虑视场角约束的攻击时间控制制导律。根据制导弹药的简化动力学模型,通过数值方法求解满足比例导引弹道轨迹的速度常微分方程,得到时变速度下的剩余飞行时间估计。同时,在比例导引制导律的基础上,利用终端滑模控制技术设计了时变速度情况下考虑视场角约束的时间控制制导律,以保证导弹能够在满足视场角约束的条件下以期望的攻击时间命中目标。仿真结果表明,所提出的制导律在时变速度场景下能满足视场角约束,并且实现较高的时间控制精度和命中精度。To solve the cooperative saturation attack problem of conventional guided munitions,an attack time control guidance law considering field of view constraint is proposed under uncontrollable time-varying velocity. According to the simplified dynamic model of guided munitions,the velocity ordinary differential equation satisfying the proportional guided ballistic trajectory is solved by numerical method,and the time-to-go estimation under time-varying velocity is obtained. Based on the proportional guidance law,the time control guidance law considering field of angle constraint is designed by using the terminal sliding mode control technique under uncontrollable time-varying velocity,which can guarantee the missile hits the target with the expected attack time. Simulation results show that the proposed guidance law can satisfy field of view constraint under the time-varying velocity scenario,and achieve higher time control accuracy and hit accuracy.

关 键 词：制导弹药 制导律 速度时变 视场角约束 时间控制 剩余时间估计 

分 类 号：TJ765.3[兵器科学与技术—武器系统与运用工程]