New developments in state estimation for nonlinear systems

نویسندگان

  • Magnus Nørgaard
  • Niels Kjølstad Poulsen
  • Ole Ravn
چکیده

State estimators for nonlinear systems are derived based on polynomial approximations obtained with a multi-dimensional interpolation formula. It is shown that under certain assumptions the estimators perform better than estimators based on Taylor approximations. Nevertheless, the implementation is signi"cantly simpler as no derivatives are required. Thus, it is believed that the new state estimators can replace well-known estimators, such as the extended Kalman "lter (EKF) and its higher-order relatives, in most practical applications. ( 2000 Elsevier Science Ltd. All rights reserved.

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عنوان ژورنال:
  • Automatica

دوره 36  شماره 

صفحات  -

تاریخ انتشار 2000