Linear perturbation method for kalman filter tracking of...

Details Linear perturbation method for kalman filter tracking of... Linear perturbation method for kalman filter tracking of...

G - Physics

01

V

G01V 3/08 (2006.01)

Patent

CA 2311554

Methods (10, 30) including a Kalman filter tracking method (30) for localizing a magnetic field source and which employs a linear perturbation method (20). The linear perturbation method linearizes an objective function in the neighborhood of the actual source enabling the source location to be computed in a single operation. Successive applications of the linear perturbation method lead to successive improvements in the localization result.

L'invention concerne des procédés (10, 30), en particulier un procédé de perturbation linéaire (20) pour la recherche par filtrage Kalman (30), permettant de localiser une source de champ magnétique. Au moyen du procédé de perturbation linéaire, on linéarise une fonction objective au voisinage de la source effective, ce qui permet de calculer l'emplacement de la source en une seule opération. Par applications successives du procédé de perturbation linéaire, on parvient à apporter des améliorations successives au résultat de la localisation.

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