Sysnav

Ecole Polytechnique

David Caruso

Mathieu Hillion

David Vissiere

Pierre Rouchon

Hendrik Meier

Charles-Ivan Chesneau

Nadège Vissiere

Karine Beauchard-Leroy

A method for calibrating a magnetometer. The magnetometer travels through (Si) a set of path positions, and acquires (S2) a plurality of measurements of the magnetic field. Trajectory information (S3) is provided representative of the location and the orientation of a point integral with the magnetometer. The measurements of the magnetic field are matched up (S4) with the trajectory information. A determination (S5) is made of calibration parameters of the magnetometer by the minimisation of a cost function involving, for a plurality of determination times, at least the calibration parameters, a measurement of the magnetic field, and a relationship linking the change in a magnetic field with the change in the location and in the orientation of the magnetometer derived from the trajectory information.

Method for calibrating a magnetometer

The present invention relates to a method for estimating the movement of an object () moving in an environment (&#x3a3;) and an ambient magnetic field, the method being characterised in that it includes the steps of:

Method for estimating the movement of an object moving in an environment and a magnetic field

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Paris, France

David Caruso