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Nonlinear Reduced-Order Observer-Based Predictive Control for Diving of an Autonomous Underwater Vehicle

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  • Xuliang Yao
  • Guangyi Yang
  • Yu Peng

Abstract

The attitude control and depth tracking issue of autonomous underwater vehicle (AUV) are addressed in this paper. By introducing a nonsingular coordinate transformation, a novel nonlinear reduced-order observer (NROO) is presented to achieve an accurate estimation of AUV’s state variables. A discrete-time model predictive control with nonlinear model online linearization (MPC-NMOL) is applied to enhance the attitude control and depth tracking performance of AUV considering the wave disturbance near surface. In AUV longitudinal control simulation, the comparisons have been presented between NROO and full-order observer (FOO) and also between MPC-NMOL and traditional NMPC. Simulation results show the effectiveness of the proposed method.

Suggested Citation

  • Xuliang Yao & Guangyi Yang & Yu Peng, 2017. "Nonlinear Reduced-Order Observer-Based Predictive Control for Diving of an Autonomous Underwater Vehicle," Discrete Dynamics in Nature and Society, Hindawi, vol. 2017, pages 1-15, January.
    • Handle: RePEc:hin:jnddns:4394571
    DOI: 10.1155/2017/4394571
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