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Journal of Applied Geodesy

Editor-in-Chief: Kahmen, Heribert / Rizos, Chris

CiteScore 2018: 1.61

SCImago Journal Rank (SJR) 2018: 0.532
Source Normalized Impact per Paper (SNIP) 2018: 1.064

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Volume 7, Issue 4


Using Geomagnetic Field for Indoor Positioning

Binghao Li / Thomas Gallagher / Chris Rizos / Andrew G. Dempster
Published Online: 2013-11-27 | DOI: https://doi.org/10.1515/jag-2013-0016


Geomagnetic field variation in support to indoor positioning and navigation has recently attracted considerable interest because of the advantage that technology based on the geomagnetic field has no infrastructure needs. Test using sensitive magnetometers has confirmed that it is possible to use geomagnetic field information for positioning purposes, however there are still issues to be addressed before it can be used in real applications. For example, are the low cost built-in magnetometers in mobile phones good enough for positioning purposes based on "fingerprinting" approaches? Is the geomagnetic field temporally stable for very long period of time? Tests have been carried out using several devices including smart phones. Because geomagnetic field positioning techniques alone may have difficulties, integration with other positioning methods is necessary. Wi-Fi is one of the obvious technology options. One approach is using Wi-Fi to first estimate approximate position, and then applying geomagnetic field information to refine position estimation. An experiment was carried out to test the proposed approach, and the error of fingerprintbased magnetic field positioning was analysed.

Keywords: Geomagnetic field; Indoor positioning; Fingerprinting

About the article

Published Online: 2013-11-27

Published in Print: 2013-11-01

Citation Information: Journal of Applied Geodesy, Volume 7, Issue 4, Pages 299–308, ISSN (Online) 1862-9024, ISSN (Print) 1862-9016, DOI: https://doi.org/10.1515/jag-2013-0016.

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