Paper: An adaptive robustizing approach to kalman filtering

  • Authors:
  • Chee Tsai;Ludwik Kurz

  • Affiliations:
  • Department of Electrical Engineering and Computer Science, Polytechnic Institute of New York, Brooklyn, NY 11201, U.S.A.;Department of Electrical Engineering and Computer Science, Polytechnic Institute of New York, Brooklyn, NY 11201, U.S.A.

  • Venue:
  • Automatica (Journal of IFAC)
  • Year:
  • 1983

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Abstract

The performance of a linear Kalman filter will degrade when the dynamic noise is not Gaussian. A robust Kalman filter based on the m-interval polynomial approximation (MIPA) method for unknown non-Gaussian noise is proposed. Two situations are considered: (a) the state is Gaussian and the observation noise is non-Gaussian; (b) the state is non-Gaussian and the observation noise is Gaussian. It is shown, as compared with other non-Gaussian filters, the MIPA Kalman filter is computationally feasible, unbiased, more efficient and robust. For the scalar model, Monte Carlo simulations are given to demonstrate the ideas involved.