Since the dynamics of autonomous underwater vehicles (AUVs) are highly nonlinear and their hydrodynamic coefficients vary with different operating conditions, a high performance control system of an AUV is needed to have the capacities of learning and adaptation to the variations of the AUV dynamics. In this paper, a linearly parameterized neural network is used to approximate the uncertainties of the vehicle dynamics, where the basis function vector of the network is constructed according to the vehicle physical properties. The proposed controller guarantees uniform boundedness of the vehicle trajectory tracking errors and network weights estimation errors based on the Lyapunov stability theory, where the network reconstruction errors and disturbances in the vehicle dynamics are bounded by an unknown constant. Numerical simulation studies are performed to illustrate the effectiveness of the proposed control scheme.


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    Titel :

    Neural net based nonlinear adaptive control for autonomous underwater vehicles


    Beteiligte:
    Li, Ji-Hong (Autor:in) / Lee, Pan-Mook (Autor:in) / Lee, Sang-Jeong (Autor:in)


    Erscheinungsdatum :

    2002


    Format / Umfang :

    6 Seiten, 17 Quellen




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




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