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论文:2017,Vol:35,Issue(2):177-182 |
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引用本文： |
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郭宗易, 周军, 郭建国. 高速飞行器新型自适应干扰估计姿态控制律[J]. 西北工业大学学报 |
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Guo Zongyi, Zhou Jun, Guo Jianguo. On a New Adaptive Disturbance Observer-Based Attitude Control Law for Hypersonic Vehicles[J]. Northwestern polytechnical university |
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| 高速飞行器新型自适应干扰估计姿态控制律 |
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| 郭宗易, 周军, 郭建国 |
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| 西北工业大学 精确制导与控制研究所, 陕西 西安 710072 |
| 摘要: |
| 考虑受到非匹配不确定性影响的高超声速飞行器控制问题，提出一种基于自适应滑模干扰观测器的反步法姿态控制律。利用自适应滑模理论设计新型干扰观测器，并采用Lyapunov理论证明其能够对外界扰动进行精确估计，其优点在于其不需要知道不确定项的上界，减少了对不确定项的信息要求；然后给出干扰观测器参数的选择选取关系。最后结合反步法设计高超声速飞行器姿态控制律，不仅能够获得良好的跟踪性能，而且对于非匹配扰动具有较强的鲁棒性。数值仿真考虑气动参数拉偏以及实际的执行机构幅值和速率限制，仿真结果验证了文中控制律的有效性。 |
| 关键词:
高超声速飞行器
滑模干扰观测器
自适应
反步控制
非匹配不确定性
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| On a New Adaptive Disturbance Observer-Based Attitude Control Law for Hypersonic Vehicles |
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| Guo Zongyi, Zhou Jun, Guo Jianguo |
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| Institute of Precision Guidance and Control, Northwestern Polytechnical University, Xi'an 710072, China |
| Abstract: |
| Aiming at the attitude control issue for hypersonic vehicles with the mismatched uncertainties, this paper presents an adaptive sliding mode disturbance observer-based backstepping control law. Firstly, the disturbance observer is designed based on the adaptive sliding mode technique, and the precise estimation of the disturbance is guaranteed via the Lyapunov stability theory. The merit of this disturbance observer is that the disturbance boundary is not known in advance. Then, the relationship for observer gains is given. At last, the backstepping control law for the hypersonic vehicle combining with the disturbance observer is developed. This control law is not only able to achieve the good tracking performance, but also robust against the mismatched uncertainties. The parameters perturbation and actuator restriction are considered in the numerical simulation, and the results demonstrate the effectiveness of the proposed approach. |
| Key words:
disturbance observer
adaptive sliding mode
backstepping control, hypersonic vehicles
angle of attack, attitude control, Lyapunov functions
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| 收稿日期: 2016-09-18
修回日期:
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| DOI: |
| 基金项目: 国家自然科学基金（61473226）资助 |
| 通讯作者:
Email： |
| 作者简介: 郭宗易(1988-),西北工业大学博士研究生,主要从事飞行器导航制导与控制方向研究。
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| 相关功能 |
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| 作者相关文章 |
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| 郭宗易 在本刊中的所有文章 |
| 周军 在本刊中的所有文章 |
| 郭建国 在本刊中的所有文章 |
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参考文献: |
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