摘要
针对目前高超声速飞行器难以拦截的问题,提出了微分对策制导律。首先,建立了三维空间两方空中对抗模型,提出了最优性能指标,根据状态依赖指标得到的实时更新的Riccati方程进行最优策略的实时解算。分别采用了较为精确的Schur法和近似计算但速度较快的θ-D法求解Riccati方程,得到了两种微分对策制导律。在目标蛇形机动作战情景下对传统比例导引法和微分对策法进行仿真分析。比较性能指标,得出微分对策法在面对高速机动目标时效果优于比例导引法的结论。
A differential games guidance law is proposed for the difficulty of intercept of hypersonic vehicle.Firstly,the model of air confrontation is established between friend and foe in three-dimensional space and the optimal performance indexes are proposed.The optimal strategies are resolved according to Riccati Equation updated in real-time that is based on state-dependent coefficient.In order to solve Riccati Equation,more accurate Schur method and approximate calculation that has but fasterθ-D method are applied to obtaining two kinds of differential games guidance law.In the operational scenario of high speed serpentine maneuvering flight target,traditional proportional guidance and differential games guidance law are analyzed by using the simulation results.Compared with the performance,a conclusion is drawn that in face of high speed maneuvering target,the effect of differential games guidance law is superior to proportional guidance.
作者
杜雪松
张东俊
诸葛浩
DU Xuesong;ZHANG Dongjun;ZHUGE Hao(Beijing System Design Institute of Mechanical-Electrical Engineering,Beijing 100854,China)
出处
《航天控制》
CSCD
2024年第3期29-34,共6页
Aerospace Control
