State estimation using interval analysis and belief-function theory: application to dynamic vehicle localization

  • Authors:
  • Ghalia Nassreddine;Fahed Abdallah;Thierry Denœux

  • Affiliations:
  • UMR, CNRS, HEUDIASYC, Université de Technologie de Compiègne, Compiègne Cedex, France;UMR, CNRS, HEUDIASYC, Université de Technologie de Compiègne, Compiègne Cedex, France;UMR, CNRS, HEUDIASYC, Université de Technologie de Compiègne, Compiègne Cedex, France

  • Venue:
  • IEEE Transactions on Systems, Man, and Cybernetics, Part B: Cybernetics
  • Year:
  • 2010

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Abstract

A new approach to nonlinear state estimation based on belief-function theory and interval analysis is presented. This method uses belief structures composed of a finite number of axis-aligned boxes with associated masses. Such belief structures can represent partial information on model and measurement uncertainties more accurately than can the bounded-error approach alone. Focal sets are propagated in system equations using interval arithmetics and constraint-satisfaction techniques, thus generalizing pure interval analysis. This model was used to locate a land vehicle using a dynamic fusion of Global Positioning System measurements with dead reckoning sensors. The method has been shown to provide more accurate estimates of vehicle position than does the bounded-error method while retaining what is essential: providing guaranteed computations. The performances of our method were also slightly better than those of a particle filter, with comparable running time. These results suggest that our method is a viable alternative to both bounded-error and probabilistic Monte Carlo approaches for vehicle-localization applications.