The Research of Terminal Optimal Guidance Law of MANEUVERING vehicle with Multiple Constrains
The Research of Terminal Optimal Guidance Law of MANEUVERING vehicle with Multiple Constrains
复制标题
多约束机动车辆终端最优制导律研究
DOI：
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发表时间：
2019
期刊：
影响因子：
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通讯作者：
Qin Xuguo
中科院分区：
文献类型：
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作者：
Li Qiang;Li Jun;Wang Yonghai;Zhang Xi;Qin Xuguo
为了研究多约束条件下机动飞行器的末制导问题，提出了一种最优制导律。考虑端子位置、冲击角约束和过载要求。首先建立了末制导的线性动力学模型，利用Schwartz不等式定理推导了加速度指令的表达式，并给出了便于工程应用的形式。通过分析制导顺序对过载和弹道特性的影响，得出了制导系数的特征。最后，提出了末制导律。仿真结果表明，该制导律既能降低过载，又能满足机动要求、冲击角约束和攻击精度要求。
To study the terminal guidance problem of maneuvering vehicle under the multiple constraints, an optimal guidance law is proposed. Considering of the terminal position, impact angle constraint and overload requirement. Firstly, the linear dynamic model of terminal guidance is established, and the expression of acceleration command is inferred by the Schwartz inequality theorem, then the form which is convenient for engineering application is presented. The features of guidance coefficient is obtained by analyzing the influence of guidance order to overload and trajectory characteristics. At last, the terminal guidance law is proposed. It is showed that the guidance law can both reduce the overload, and meet the command of maneuvering, impact angle constraint and attack accuracy by simulations.