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Sensors 2017, 17(11), 2527; doi:10.3390/s17112527

Comparison of Measurement Models for 3D Magnetic Localization and Tracking

1
Regione Umbria, 06124 Perugia, Italy
2
Engineering Department, Università degli Studi di Perugia, 06125 Perugia, Italy
*
Author to whom correspondence should be addressed.
Received: 1 September 2017 / Revised: 23 October 2017 / Accepted: 24 October 2017 / Published: 3 November 2017
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Abstract

In this paper, we consider magnetic positioning and tracking of objects and provide a comparison of the characteristics of two major measurement models: the magnetic dipole model and the mutual inductance model. The numerical results obtained by applying these models to a short-range position measurement application, with a maximum operating distance of approximately 50 cm, are compared. Based on the results of this comparison, a prototype 9-sensor array is developed, experimental tests are performed, and extensive measurement results are presented. Outcomes show the feasibility of tracking the position and orientation of a mobile coil in real time with a median positioning error below 1 cm and a worst-case error of about 2 cm and 11 degrees inside a spatial region of 30 × 30 × 30 cm3 operational volume. View Full-Text
Keywords: magnetic positioning systems; magnetic measurement models; tracking, unscented Kalman filter magnetic positioning systems; magnetic measurement models; tracking, unscented Kalman filter
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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De Angelis, G.; De Angelis, A.; Moschitta, A.; Carbone, P. Comparison of Measurement Models for 3D Magnetic Localization and Tracking. Sensors 2017, 17, 2527.

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