LINEAR PERTURBATION METHOD FOR KALMAN FILTER TRACKING OF MAGNETIC FIELD SOURCES

摘要

Methods (10, 30) including a Kalman filter tracking method (30) for localizi ng 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 compute d in a single operation. Successive applications of the linear perturbation method lead to successive improvements in the localization result.