| 基于LMI约束优化的再入飞行器预测控制 |
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| 引用本文： | 张军,梁建国,邵晓巍,毕贞法.基于LMI约束优化的再入飞行器预测控制[J].动力学与控制学报,2008,6(4):372-376. |
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| 作者姓名： | 张军 梁建国 邵晓巍 毕贞法 |
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| 作者单位： | 1. 上海宇航系统工程研究所,上海,201108
2. 上海交通大学空天学院,上海,200240 |
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| 基金项目： | 国家高技术研究发展计划(863计划)
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| 摘 要： | 针对飞行器再入过程中的复杂多约束,提出一种基于线性矩阵不等式(LMI)约束优化的纵向制导方法.首先对再入飞行器的纵向运动方程伪线性化建模,保证在标准轨道邻域内点点可控,简化了非线性模型;然后在每个制导周期内利用LMI求解有约束的凸优化问题,从而获得在线反馈控制律和全量控制量,用于实际再入轨道的制导;同时给出了切换闭环系统稳定性的证明.仿真结果表明,所设计的制导律对再入初始点状态偏差等具有较强的鲁棒性.
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| 关 键 词： | 再入飞行器 纵向制导 LMI 约束 伪线性化 |
| 收稿时间： | 2008/2/19 0:00:00 |
| 修稿时间： | 2008/6/24 0:00:00 |
Optimal predictive guidance based on linear matrix inequalities constraints for Re-entry vehicles |
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| Zhang Jun,Liang Jianguo,Shao Xiaowei and Bi Zhenfa.Optimal predictive guidance based on linear matrix inequalities constraints for Re-entry vehicles[J].Journal of Dynamics and Control,2008,6(4):372-376. |
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| Authors: | Zhang Jun Liang Jianguo Shao Xiaowei and Bi Zhenfa |
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| Affiliation: | 1.Aerospace System Engineering Shanghai;Shanghai 201108;China;2.Institute of Aerospace Science and Technology;Shanghai Jiaotong Universityy;Shanghai 200240;China |
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| Abstract: | A method based on linear matrix inequalities (LMI) constraints was presented for the re-entry longitudinal guidance law with intricate constraints. The nonlinear longitudinal dynamic equations were modeled pseudo-linearly for controllability in the standard trajectory neighborhood area,and then the guidance law was designed by solving LMI convex optimal. In each control period the feedback control law and input were obtained. The control input was used to guide the actual reentry trajectory,and closed-loop ... |
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| Keywords: | LMI |
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