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A Bayesian framework for calibration and real-time localization of magnetometers using a controllable passive permanent magnet
Conference proceeding

A Bayesian framework for calibration and real-time localization of magnetometers using a controllable passive permanent magnet

Edson Hiroshi Aoki, Shaohui Foong, Dushyanth Madhavan and Yew Long Lo
The Institute of Electrical and Electronics Engineers, Inc. (IEEE) Conference Proceedings, p.346
01/07/2014

Abstract

Bayesian analysis Sensors
Conference Title: 2014 IEEE/ASME International Conference on Advanced Intelligent Mechatronics (AIM) Conference Start Date: 2014, July 8 Conference End Date: 2014, July 11 Conference Location: Besacon, France Magnetic localization systems based on passive permanent magnets (PM) are of great interest due to its ability to provide non-contact sensing and lack of a power requirement of the PM. One sub-problem of particular interest is accurately localizing, in real-time, a single magnetometer with unknown position and orientation, using a passive PM with controllable position and orientation. This is a challenging problem due to the presence of measurement noises and biases, inaccuracy of the magnetic field model, and possible low observability. Bayesian statistical signal processing is a promising approach for this problem, due to its strong mathematical foundation, robustness and suitability for real-time processing. In this work, we develop a Bayesian framework for the individual sensor localization problem which is composed of three parts: magnetic field modeling, sensor calibration, and real-time sensor localization. The effectiveness of the framework is demonstrated using a experimental setup that emulates a possible Transcranial Magnetic Stimulation (TMS) application. [PUBLICATION ABSTRACT]

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