具有落角约束的空地导弹最优导引律  

Optimal Guidance Law with Angle-of-fall Constraint for Air-to-surface Missile

作　　者：徐兴元[1,2,3] 林青松[1] 蔡远利[3] 

机构地区：[1]河南科技大学信息工程学院,河南洛阳471023 [2]中国空空导弹研究院,河南洛阳471009 [3]西安交通大学自动化系,陕西西安710049

出　　处：《计算机仿真》2015年第7期51-54,共4页Computer Simulation

基　　金：中国博士后科学基金(2013M542002);航空科学基金(20130142002)

摘　　要：在空地导弹制导精度优化控制的研究中,特定的碰撞角度能够有效提高导弹的精确打击效果。为此以最优控制理论为基础,结合空地导弹的精度要求,提出了一种具有落角约束的最优导引律。首先,推导了适用于任意阶系统的具有落角约束的最优导引律一般形式;然后,给出了零滞后系统的导引律表达式;最后,通过数字仿真验证了所提出导引律的有效性。仿真结果表明,所提出的导引律具有较高的精度,脱靶量和落角误差能够满足要求,并且能够以任意角度打击地面目标,可以满足空地导弹制导精度的需求。Specific angle-of-fall can considerably increase air-to-surface missile＇s lethality. Based on optimal control theory and application background of air-to-surface missile,an optimal guidance law with angle-of-fall constraint was proposed in this paper. First,the general form of the proposed guidance law was deduced,which can be applied to arbitary order system. Then,the guidance law suitable for lag-free system was given. Finally,numerical simulation was used to analyze the performance of the guidance law proposed here. Simulation results show that the optimal guidance law owns high precision,the angle-of-fall error and terminal miss distance can meet the requirements of air-to-surface missile,and,a missile can hit ground target at any angle.

关 键 词：空地导弹 最优导引律 落角约束 线性二次型 

分 类 号：TJ765.43[兵器科学与技术—武器系统与运用工程]