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Open AccessArticle

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.
Sensors 2017, 17(11), 2527; https://doi.org/10.3390/s17112527
Received: 1 September 2017 / Revised: 23 October 2017 / Accepted: 24 October 2017 / Published: 3 November 2017
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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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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