Set membership state and parameter estimation for systems described by nonlinear differential equations

  • Authors:
  • T. RaıSsi;N. Ramdani;Y. Candau

  • Affiliations:
  • CERTES, Université Paris XII-Val de Marne, 61 avenue du Général de Gaulle, 94010 Créteil cedex, France;CERTES, Université Paris XII-Val de Marne, 61 avenue du Général de Gaulle, 94010 Créteil cedex, France;CERTES, Université Paris XII-Val de Marne, 61 avenue du Général de Gaulle, 94010 Créteil cedex, France

  • Venue:
  • Automatica (Journal of IFAC)
  • Year:
  • 2004

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Abstract

This paper investigates the use of guaranteed methods to perform state and parameter estimation for nonlinear continuous-time systems, in a bounded-error context. A state estimator based on a prediction-correction approach is given, where the prediction step consists in a validated integration of an initial value problem for an ordinary differential equation (IVP for ODE) using interval analysis and high-order Taylor models, while the correction step uses a set inversion technique. The state estimator is extended to solve the parameter estimation problem. An illustrative example is presented for each part.