Volume 39 Issue 9
Sep.  2013
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Liu Zhi, Wang Yong. Design of fuzzy T-S model of unmanned aerial vehicle in full envelope[J]. Journal of Beijing University of Aeronautics and Astronautics, 2013, 39(9): 1181-1186. (in Chinese)
Citation: Liu Zhi, Wang Yong. Design of fuzzy T-S model of unmanned aerial vehicle in full envelope[J]. Journal of Beijing University of Aeronautics and Astronautics, 2013, 39(9): 1181-1186. (in Chinese)

Design of fuzzy T-S model of unmanned aerial vehicle in full envelope

  • Received Date: 22 Nov 2012
  • Publish Date: 30 Sep 2013
  • The method of constructing fuzzy T-S model in full envelope was designed for the integrated flight control of unmanned aerial vehicle (UAV) in entire envelope. Based on the local linearization of non-affine system, the design of fuzzy T-S model was transformed to the optimization of the centers and width of membership functions, with the weighted approximation errors of the stability and handing performances of UAV as cost function. The global optimization was conducted via extension of fuzzy sets of premise variables according to the sensitivity, providing the number of fuzzy rules and initial value of membership functions. Fast local optimization was performed employing Levenberg-Marquardt algorithm with the heuristic modification of regular factor. The example shows the algorithm converges rapidly, and that the fuzzy T-S model constructed realizes high-precision approximation of stability and handing performances of UAV in full envelope with less fuzzy rules, which is suitable for the integrated control of UAV in full envelope.

     

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