Augmenting Cell Phone Geolocation via Magnetic Mapping

Yan Cui and Kartik B. Ariyur

Abstract:	We develop algorithms to augment the accuracy of cell phone geolocation with magnetic field measurements. When a cell phone powers on, it located within some 500m to the nearest cell tower. We exploit the local concentrations of magnetic materials and fields in urban areas to make this estimate more accurate. We do so through use of interval analysis to narrow the spatial location of the cell phone with the magnetometer on it. Our preliminary results show geolocation to within 10m in regions of strong concentration of magnetic materials.
Published in:	Proceedings of the 25th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2012) September 17 - 21, 2012 Nashville Convention Center, Nashville, Tennessee Nashville, TN
Pages:	2469 - 2473
Cite this article:	Cui, Yan, Ariyur, Kartik B., "Augmenting Cell Phone Geolocation via Magnetic Mapping," Proceedings of the 25th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2012), Nashville, TN, September 2012, pp. 2469-2473.
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