An Adaptive Observer for Dynamical Ship Position Control Using Vectorial Observer Backstepping

Francesco Calugi, Anders Robertsson, Rolf Johansson

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Abstract

In this paper, we propose an adaptive observer for dynamically positioned ships, that can be used together with the controller shown by Fossen and Grovlen, to design an observer-based adaptive control scheme. The resulting closed-loop system is globally asymptotically stable with respect to the ship positions and velocities, and globally stable with respect to adaptation to unknown parameters. A discrete-time approximation scheme is presented.
Original languageEnglish
Title of host publicationProceedings. 42nd IEEE Conference on Decision and Control, 2003.
PublisherIEEE - Institute of Electrical and Electronics Engineers Inc.
Pages3262-3267
Volume4
ISBN (Print)0-7803-7924-1
DOIs
Publication statusPublished - 2003

Publication series

Name
Volume4
ISSN (Print)0191-2216

Subject classification (UKÄ)

  • Control Engineering

Free keywords

  • asymptotic stability
  • closed loop system
  • dynamical ship position control
  • globally asymptotically stable
  • vectorial observer backstepping
  • observer based adaptive control
  • adaptive observer

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