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为提高机动性和操作性,大气层内拦截弹多采用气动力/喷流反作用力(RCS)复合控制系统。在RCS工作时间有限的条件下,建立线性化对策模型,并利用微分对策理论研究了复合控制系统对3种可能对策空间的分布影响。RCS的使用时机不同,其对微分对策空间分布的影响也不同。基于对策空间的分布确定了RCS的使用时机,并给出了适合实际应用的制导策略。仿真研究表明本文提出的应用时机与制导策略能够实现气动力与RCS之间的有机结合,使制导指令达到最优分配,显著地提高了制导精度。
In order to improve the maneuverability and operability, the interceptor in the atmosphere mostly adopts the composite control system of aerodynamic / jet reaction (RCS). Under the limited working time of RCS, a linearization strategy model is established and the effect of composite control system on the distribution of three possible countermeasures spaces is studied by means of differential game theory. The timing of the use of RCS is different and its impact on the spatial distribution of differential measures is also different. Based on the distribution of countermeasures space, the timing of the use of RCS is determined, and the guidance strategy suitable for practical application is given. The simulation results show that the application timing and guidance strategy proposed in this paper can realize the organic combination of aerodynamic forces and RCS, make the guidance commands reach the optimal distribution, and improve the guidance accuracy remarkably.