| 基于快速模糊干扰观测器的UASV再入Terminal滑模控制 |
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| 引用本文： | 黄国勇,姜长生,王玉惠.基于快速模糊干扰观测器的UASV再入Terminal滑模控制[J].宇航学报,2007,28(2):292-297,304. |
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| 作者姓名： | 黄国勇 姜长生 王玉惠 |
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| 作者单位： | 南京航空航天大学,自动化学院模式识别与智能系统实验室,南京,210016 |
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| 摘 要： | 针对无人空天飞行器再人大气层过程中气动参数变化剧烈、控制精度要求高的特点，设计了基于快速模糊干扰观测器的Terminal滑模控制方案。通过改进传统模糊干扰观测器的学习律，提出一种快速模糊干扰观测器，增强了其在线逼近干扰及系统不确定的能力。Terminal滑模的有限时间收敛特性提高了系统跟踪速度，同时采用快速模糊干扰观测器消除全部扰动的影响，从而保证了飞行品质。最后，仿真结果表明了快速模糊干扰观测器的优越性及闭环控制方案的有效性。
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| 关 键 词： | 无人空天飞行器再入 气动参数不确定 快速模糊干扰观测器 Terminal滑模控制 有限时间收敛 |
| 文章编号： | 1000-1328（2007）02-0292-06 |
| 修稿时间： | 2006-06-212006-11-08 |
Research of Terminal Sliding Mode Control Based on Fast Fuzzy Disturbance Observer for UASV Re-Entry |
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| HUANG Guo-yong,JIANG Chang-sheng,WANG Yu-hui.Research of Terminal Sliding Mode Control Based on Fast Fuzzy Disturbance Observer for UASV Re-Entry[J].Journal of Astronautics,2007,28(2):292-297,304. |
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| Authors: | HUANG Guo-yong JIANG Chang-sheng WANG Yu-hui |
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| Institution: | Lab of Pattern Recognition and Intelligent systems, College of Automation Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016,China |
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| Abstract: | A Terminal sliding mode control(TSMC) based on fast fuzzy disturbance observer(FFDO) is proposed for the UASV re-entry with violent changes of aero-dynamics parameters.To achieve high precision,an FFDO is designed which improves the approximation ability of the observer on-line.The finite time convergence characteristic of TSMC improves the tracking speed of the flight control system.Combining TSMC with FFDO,the flight quality is guaranteed.Finally,the simulations demonstrate the superiority of the FFDO and the effectiveness of the closed-loop control scheme. |
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| Keywords: | UASV re-entry Uncertainties of aero-dynamics parameters Fast fuzzy disturbance observer Terminal sliding mode control Finite-time convergence |
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