Accurate and Robust Indoor Localization Systems using Ultra-wideband Signals
Abstract
Indoor localization systems that are accurate and robust with respect to propagation channel conditions are still a technical challenge today. In particular, for systems based on range measurements from radio signals, non-line-of-sight (NLOS) situations can result in large position errors. In this paper, we address these issues using measurements in a representative indoor environment. Results show that conventional tracking schemes using high- and a low-complexity ranging algorithms are strongly impaired by NLOS conditions unless a very large signal bandwidth is used. Furthermore, we discuss and evaluate the performance of multipath-assisted indoor navigation and tracking (MINT), that can overcome these impairments by making use of multipath propagation. Across a wide range of bandwidths, MINT shows superior performance compared to conventional schemes, and virtually no degradation in its robustness due to NLOS conditions.
Keywords
Cite
@article{arxiv.1304.7928,
title = {Accurate and Robust Indoor Localization Systems using Ultra-wideband Signals},
author = {Paul Meissner and Erik Leitinger and Markus Fröhle and Klaus Witrisal},
journal= {arXiv preprint arXiv:1304.7928},
year = {2013}
}
Comments
Published at the European Navigation Conference (ENC) 2013, Vienna, Austria