三体对抗中的自适应协同突防策略

发布时间：2019-04-16 15:38

【摘要】：针对三体对抗中由目标飞行器释放的弱机动防御弹难以精确打击高机动来袭拦截弹的问题,提出了一种目标-防御弹的自适应协同突防制导策略。首先,根据已知的拦截弹的制导策略和运动信息,以最小化脱靶量和控制代价为目标,通过系统降阶,利用最优控制理论设计了目标-防御弹的最优协同制导律。接着,考虑实际攻防对抗中拦截弹制导策略未知的情况,采用基于平方根容积卡尔曼滤波的多模型自适应滤波器估计拦截弹的制导策略和运动信息,利用模型概率对各模型的最优协同制导律进行混合输出,得到自适应协同突防制导律。仿真结果表明:最优协同制导律能让目标飞行器协助防御弹在不具备机动能力优势的情况下成功打击拦截弹,且脱靶量小于0.1m;自适应协同制导律能够准确地估计拦截弹的运动状态,并使得防御弹在目标飞行器配合下以较小的控制代价精确地打击拦截弹,脱靶量有97%的概率落入小于0.765m范围内。
[Abstract]:In this paper, an adaptive cooperative penetration guidance strategy for target-defensive missile is proposed to solve the problem that it is difficult to strike high-maneuvering incoming interceptor accurately by weak mobile defensive missile released by target aircraft in three-body warfare. Firstly, according to the known guidance strategy and motion information of interceptor, the optimal cooperative guidance law of target-defense missile is designed by means of the optimal control theory and the aim is to minimize the miss distance and control cost. Then, considering the unknown guidance strategy of interceptor missile in the actual attack-defense countermeasure, the multi-model adaptive filter based on square root volume Kalman filter is used to estimate the guidance strategy and motion information of interceptor. The optimal cooperative guidance law of each model is mixed output by using the model probability, and the adaptive cooperative defense guidance law is obtained. The simulation results show that the optimal cooperative guidance law can enable the target aircraft to assist the missile to strike the interceptor without the advantage of maneuverability, and the miss range is less than 0.1 m. The adaptive cooperative guidance law can accurately estimate the state of motion of the interceptor, and make the defensive missile strike the interceptor accurately with small control cost under the cooperation of the target vehicle. The probability of miss range is 97% in the range of less than 0.765m.
【作者单位】：西安交通大学电子与信息工程学院;
【基金】：国家自然科学基金资助项目(61463029,61308120,61202128)
【分类号】：TJ765;E92

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