摘要
为了增强多枚反舰导弹协同作战时的突防和打击能力,提出了一种由弹目距离协同制导律和视线角速度收敛制导律两部分组成的多导弹协同制导律。综合多枚导弹的弹目距离信息,设计了期望弹目距离。基于比例导引律建立了导弹目标相对运动非线性模型,采用时标分离原理将其分为快变子系统和慢变子系统,然后采用动态逆系统理论将2个子系统反馈线性化,基于线性系统理论设计了能够实现多弹弹目距离趋于期望弹目距离的制导律。为了保证各导弹顺利地协同攻击目标,在飞行末段,采用有限时间控制理论设计了在弹目距离逐渐缩小的过程中视线角速度在有限时间内快速收敛到零的制导律。仿真结果表明:采用该协同制导律能够使多枚导弹以期望的弹目距离同步接近目标,最后几乎同时命中目标,有效地实现了弹目距离和攻击时间的协同。
To enhance the penetration and hitting capacity of anti-ship missiles attacking the target cooperatively,a cooperative guidance law composed of a cooperative range-to-go guidance law and a guidance law making line-of-sight （LOS）angle-rate approach zero was proposed.The desired range-to-go was designed based on current range-to-go of each missile.Then the nonlinear relative motion model between missile and target on the basis of proportional navigation guidance law was built,and it was divided into a fast subsystem and a slow subsystem according to the time-scale separation method.Feedback linearization of two subsystems was realized based on dynamic inverse system theory.The guidance law that made multiple missiles’range-to-go approach and keep the desired range-to-go was designed adopting linear system theory.To ensure missiles to hit target precisely,another guidance law was proposed based on the finite time control theory,which made the angle-rate of LOS of every missile approach zero quickly in finite time while the range-to-go decreased gradually.Simulation results show that adopting the cooperative guidance law can make multiple missiles fly to the target synchronously and hit the target almost at the same time, and the cooperation of range-to-go and impact time are realized effectively.
出处
《弹道学报》
CSCD
北大核心
2014年第1期61-66,共6页
Journal of Ballistics
基金
国防预研基金项目
关键词
导弹
协同
制导律
弹目距离
攻击时间
missile
cooperation
guidance law
range-to-go
impact time
