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Validation of Flight Control Law Based on LFT and Structured Singular Value 被引量:2

Validation of Flight Control Law Based on LFT and Structured Singular Value
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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 parameters in the system vary in a certain range. As the p-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 soRware 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. 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 the p-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 soRware 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.
出处 《Chinese Journal of Aeronautics》 SCIE EI CAS CSCD 2007年第1期60-65,共6页 中国航空学报(英文版)
基金 Aeronautical Science Foundation of China(05E18005)
关键词 flight clearance LFT g-analysis robust stability uncertain parameter flight clearance LFT g-analysis robust stability uncertain parameter
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参考文献7

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同被引文献19

  • 1张汝麟.飞行控制与飞机发展[J].北京航空航天大学学报,2003,29(12):1077-1083. 被引量:18
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  • 5Hanson J M, Jones R E. Test results for entry guid- ance methods for space vehicles[J]. Journal of Guid- ance, Control, and Dynamics, 2004, 27(6): 960- 966.
  • 6Fielding C. Advanced techniques for clearance of flight control laws [M]. Berlin: Springer-Verlag, 2002.
  • 7Kureemun R, Bates D G, Hayes M J. On the genera- tion of LFT-based uncertainty models for flight con- trol law robustness analysis [C]//AIAA Guidance, Navigation, and Control Conference and Exhibit. Montreal: AIAA, 2001. 1-8.
  • 8Mannchen T, Bates D G, Postlethwaite I. Modeling and computing worst-case uncertainty combinations for flight control systems analysis[J]. Journal of Guidance, Control, and Dynamics, 2002, 25 (6). 1029-1039.
  • 9Bates D G, Kureemun R, Mannchen T. Improved clearance of a flight control law using μ-analysis tech- niques[J]. Journal of Guidance, Control, and Dy- namics, 2003, 26(6). 869-884.
  • 10Gunnarsson K S, Hansson J, Karlsson F, et al. Clearance of flight control laws using linear fractional transformations[C]//AIAA Guidance, Navigation, and Control Conference and Exhibit. Providence: AIAA, 2004: 1-16.

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