| Validation of Flight Control Law Based on LFT and Structured Singular Value |
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| 作者姓名： | ZHOU Xi LIU Lin CHEN Zong-ji DUAN Hai-bin |
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| 作者单位： | ZHOU Xi*，LIU Lin，CHEN Zong-ji，DUAN Hai-bin School of Automation Science and Electrical Engineering，Beijing University of Aeronautics and Astronautics，Beijing 100083，China |
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| 摘 要： | The main goal of flight clearance is to use the structured singular value (μ) analysis of the flight control system when some pa-rameters in the system vary in a certain range. As the μ-analysis can only be done on a linear fractional transformation (LFT) model, the first step of flight clearance is to generate the LFT model of the flight control system. In this paper, based on the introduction of basic theory of LFT and μ-analysis, an X-fighter is chosen as an example to utilize the proposed methods. In order to realize the flight clear-ance process automatically, a novel software package based on MATLAB programming language is developed. The results of simulation experiments validate the feasibility and effectiveness of the novel methods proposed in this paper.
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| 关 键 词： | flight clearance LFT μ-analysis robust stability uncertain parameter |
| 收稿时间： | 13 February 2006 |
| 修稿时间： | 2006-02-132006-09-21 |
Validation of Flight Control Law Based on LFT and Structured Singular Value |
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| ZHOU Xi LIU Lin CHEN Zong-ji DUAN Hai-bin.Validation of Flight Control Law Based on LFT and Structured Singular Value[J].Chinese Journal of Aeronautics,2007,20(1):60-65. |
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| Authors: | ZHOU Xi LIU Lin CHEN Zong-ji DUAN Hai-bin |
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| Institution: | School of Automation Science and Electrical Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, China |
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| Abstract: | The main goal of flight clearance is to use the structured singular value (μ) analysis of the flight control system when some parameters in the system vary in a certain range. As theμ-analysis can only be done on a linear fractional transformation (LFT) model, the first step of flight clearance is to generate the LFT model of the flight control system. In this paper, based on the introduction of basic theory of LFT and μ-analysis, an X-fighter is chosen as an example to utilize the proposed methods. In order to realize the flight clearance process automatically, a novel software package based on MATLAB programming language is developed. The results of simulation experiments validate the feasibility and effectiveness of the novel methods proposed in this paper. |
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| Keywords: | flight clearance LFT μ-analysis robust stability uncertain parameter |
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