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Nonlinear Optimal Control Scheme for an Underwater Vehicle with Regional Function Formulation

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  • Zool H. Ismail
  • Matthew W. Dunnigan

Abstract

A conventional region control technique cannot meet the demands for an accurate tracking performance in view of its inability to accommodate highly nonlinear system dynamics, imprecise hydrodynamic coefficients, and external disturbances. In this paper, a robust technique is presented for an Autonomous Underwater Vehicle (AUV) with region tracking function. Within this control scheme, nonlinear and region based control schemes are used. A Lyapunov-like function is presented for stability analysis of the proposed control law. Numerical simulations are presented to demonstrate the performance of the proposed tracking control of the AUV. It is shown that the proposed control law is robust against parameter uncertainties, external disturbances, and nonlinearities and it leads to uniform ultimate boundedness of the region tracking error.

Suggested Citation

  • Zool H. Ismail & Matthew W. Dunnigan, 2013. "Nonlinear Optimal Control Scheme for an Underwater Vehicle with Regional Function Formulation," Journal of Applied Mathematics, Hindawi, vol. 2013, pages 1-7, November.
    • Handle: RePEc:hin:jnljam:732738
    DOI: 10.1155/2013/732738
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