This study concerns with the attitude and velocity tracking control problem for the longitudinal model of hypersonic flight vehicles, which is nonlinear in aerodynamics with model uncertainties and external disturbances. By employing back stepping sliding mode method and the strictly-lower-convex-function-constructing nonlinear disturbance observer (SNDOB), a novel composite controller is proposed to guarantee the system tracking error to converge to a small region containing the origin. Besides, several proper adaptive laws are also introduced to make the controller avoid of the differential explosion problem and be chatter-free. Compared with other robust flight control approaches, key novelties of the developed method are that one new SNDOB is proposed and drawn into the virtual control laws at each step to compensate the disturbances and that adaptive laws are utilized to simplify the tedious and complicated differential operations. Finally, it is demonstrated by the simulation results that the new method exhibits not only an excellent robustness but also a better disturbance rejection performance than the convention approach.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Strictly-lower-convex-function-constructing disturbance observer based adaptive back stepping control for hypersonic flight vehicles


    Contributors:
    Zuo, Jingxing (author) / Wu, Yunjie (author) / Sun, Lianghua (author)


    Publication date :

    2018-10-01


    Size :

    13 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English





    Neural robust adaptive hypersonic flight control without back-stepping

    Wang, Shixing / Sun, Fuchun / Zhang, Yongquan et al. | IEEE | 2014


    Disturbance Observer Based Back-Stepping Attitude Control for Flexible Hypersonic Vehicle (AIAA 2017-2285)

    Lvu, Yueyong / Wang, Runchi / Ma, Guangfu et al. | British Library Conference Proceedings | 2017



    Review on back-stepping hypersonic flight control

    Xu, Bin / Ding, Linge / Wang, Shixing et al. | IEEE | 2014