This article addresses the tracking control problem of a hypersonic vehicle subject to multisource uncertainty and actuator fault. A composite fixed time control scheme is designed to achieve the stable tracking of velocity and altitude in fixed time. A nonsingular fast terminal sliding mode controller and a practically fixed-time backstepping controller are, respectively, developed for velocity subsystem and altitude subsystem. Fixed-time disturbance observer is used to tackle lumped uncertainties and a new fast fixed time filter is constructed to avoid the “explosion of terms” problem. Then, the fixed-time stability of velocity tracking error and the practically fixed-time stability of altitude tracking error are proved. Finally, compared simulations are carried out to present the efficiency of the designed control scheme.


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    Titel :

    Composite Practically Fixed Time Controller Design for a Hypersonic Vehicle With Multisource Uncertainty and Actuator Fault


    Beteiligte:
    Wang, Fang (Autor:in) / Li, Yaping (Autor:in) / Zhou, Chao (Autor:in) / Zong, Qun (Autor:in) / Hua, Changchun (Autor:in)


    Erscheinungsdatum :

    01.12.2021


    Format / Umfang :

    2267372 byte




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch






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