Journal of South China University of Technology(Natural Science) >
Flight Control Design of Unmanned Helicopter Based on Robust Integral Filtering Backstepping
Received date: 2012-05-30
Revised date: 2012-11-20
Online published: 2013-01-05
Supported by
国家自然科学基金重点项目(60376024,61174053,61202159);教育部科技创新工程重大项目(708069);广东省自然科学基金资助项目(S2011040004700)
As the existing model of unmanned helicopters is of high order, great difficulty in precise modeling and low robustness to external disturbances, the design of the normal backstepping method-based controller for helicop-ters encounters such problems as high calculation complexity, poor disturbance resistance and inaccurate trajectory tracking. In order to solve these problems, a robust integral filtering backstepping controller is proposed, which uses filters to compute the time derivatives of virtual controlled variables for avoiding the differential explosion in the normal backstepping controller, and introduces an integral term and a discontinuous robust term to improve the dis-turbance resistance and eliminate the static error of trajectory tracking. Theoretical analysis and simulation results show that the proposed method is effective and feasible.
He Yue-bang Pei Hai-long Zhao Yun-ji Li Jian-qiang . Flight Control Design of Unmanned Helicopter Based on Robust Integral Filtering Backstepping[J]. Journal of South China University of Technology(Natural Science), 2013 , 41(2) : 30 -36 . DOI: 10.3969/j.issn.1000-565X.2013.02.006
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