Abstract In this paper, a prescribed performance integral sliding mode control (ISMC) algorithm is proposed to realize high precision and rapid response for an inertial reference unit (IRU). To ensure rapid response, a tracking differentiator (TD) is introduced to arrange a transition process for a desired signal. Tracking error is limited within two prescribed performance function (PPF) bounds to improve transient performance of the IRU. By a prescribed performance error transformation, an error transformation system is established to transform the original constrained system into an equivalent unconstrained one for the IRU. A prescribed performance integral sliding mode controller is designed for the error transformation system to ensure stead-state accuracy. Stability of the prescribed performance ISMC algorithm is proved by a Lyapunov method. Comparative experiments are given to verify effectiveness and robustness of the prescribed performance ISMC algorithm for the IRU.


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    Title :

    Research on inertial reference units prescribed performance integral sliding mode angle control


    Contributors:
    Zhao, Ling (author) / He, Minghui (author) / Cao, Xinyue (author)

    Published in:

    Advances in Space Research ; 71 , 10 ; 4210-4221


    Publication date :

    2023-01-02


    Size :

    12 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English






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