On the basis of nonlinear dynamic inversion theory, a novel scheme combining sliding-mode control and backstepping is proposed for missile attitude control. In order to handle matched and unmatched uncertainties caused by unmodeled dynamics and variations of aerodynamic coefficients, a linear extended state observer (LESO) is introduced to estimate the uncertainties and the evaluated errors are compensated at each step of the backstepping design procedure. The stability of the closed-loop system is demonstrated based on Lyapunov theory. Simulation results show that the proposed scheme can guarantee the excellent tracking performance and the strong robustness against aerodynamic derivative variations.


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    Title :

    Backstepping sliding-mode control for missile attitude using a linear extended state observer


    Contributors:
    Wang, Sen (author) / Wang, Weihong (author) / Xiong, Shaofeng (author)


    Publication date :

    2014-08-01


    Size :

    168896 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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