在拦截弹红外导引头成像图像跟踪阶段,当拦截弹距离目标很近时,动态特性对制导精度有着至关重要的影响,针对这种情况,文中充分考虑了弹道拦截弹助推段拦截对拦截弹末段控制制导的要求,结合复合控制系统简化模型,提出了一种使得视线角速率在有限时间内收敛的反演变结构制导规律,此制导方法实现了拦截弹的零脫靶量,最后仿真结果验证了所设计制导方法的有效性。

In the interception missile IR seeker image tracking stage, when the interceptor close to the goal, the dynamic characteristics are of great importance to the guidance precision, in view of this situation, this paper takes into account the ballistic missile boost phase intercept the interceptor terminal control and guidance, based on the simplified model of composite control system, puts forward a kind of the Los rate convergence in finite time evolution of anti structure guidance law, the guidance method can realize zero Miss interceptor, finally the simulation results verify the validity of the design guidance method.