Approximations to nonlinear observers

  • Authors:

  • U. Schönwandt

  • Affiliations:

  • 1 Berlin 10, Einsteinufer 35, Germany

  • Venue:
  • Automatica (Journal of IFAC)
  • Year:
  • 1973

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Abstract

In this paper a criterion of observability for systems with analytic nonlinearities is used to derive finite dimensional approximations to nonlinear observers for this class of system. The observers and a second order filter are applied to stochastic velocity control of an asymmetrical rotating body. A configuration is considered which allows the observers to appear as useful devices in handling problems caused by discrete data transmission on a too slow rate. The results are illustrated by a digital computer simulation.