Range Estimation for Indoor Positioning via Drifting Clocks

K. Bagdonas, H. Schiøler, K. Borre

Abstract:	This paper presents results from the “Indoor Positioning” project conducted at Danish GPS Center (DGC), Aalborg University. We focus on creating theoretical background and experimental verification for a software based indoor positioning solution. We present a novel theory to improve the ranging accuracy for a Time Of Arrival (TOA) based ranging system. We presume a system equipped with low resolution clocks featuring a constant drift. We propose a methodology how to infer accurate TOA from aliased measurements. Additionally, results obtained via simulation and extensive experimental campaigns are presented and analyzed.
Published in:	Proceedings of the 22nd International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2009) September 22 - 25, 2009 Savannah International Convention Center Savannah, GA
Pages:	516 - 526
Cite this article:	Bagdonas, K., Schiøler, H., Borre, K., "Range Estimation for Indoor Positioning via Drifting Clocks," Proceedings of the 22nd International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2009), Savannah, GA, September 2009, pp. 516-526.
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