This article investigates the finite-time attitude stabilization problem by output feedback for a rigid spacecraft without angular velocity measurement. First of all, by employing the finite-time control technique, a finite-time stabilizing controller by state feedback is designed. Then, to address the problem of lack of angular velocity measurement, a semi-global finite-time convergent observer is proposed to recover the unknown angular velocity information in a finite time. Finally, a semi-global finite-time output feedback controller is developed. Rigorous proof shows that the attitude of rigid spacecraft will converge to the equilibrium in a finite time. A simulation example is given to demonstrate the efficiency of the proposed method.


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    Title :

    Semi-global finite-time attitude stabilization by output feedback for a rigid spacecraft


    Contributors:
    Du, Haibo (author) / Li, Shihua (author)


    Publication date :

    2013-12-01


    Size :

    11 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English