Statistical Characterization and Mitigation of NLOS Errors in UWB Localization Systems

Details Statistical Characterization and Mitigation of NLOS Errors in UWB Localization Systems Statistical Characterization and Mitigation of NLOS Errors in UWB Localization Systems

2012-03-13

arxiv.org/abs/1203.2835v1

Montorsi, F.; Pancaldi, F.; Vitetta, G.; "Statistical Characterization and Mitigation of NLOS Errors in UWB Localization Syste

Computer Science

Information Theory

Scientific paper

10.1109/ICUWB.2011.6058928

In this paper some new experimental results about the statistical characterization of the non-line-of-sight (NLOS) bias affecting time-of-arrival (TOA) estimation in ultrawideband (UWB) wireless localization systems are illustrated. Then, these results are exploited to assess the performance of various maximum-likelihood (ML) based algorithms for joint TOA localization and NLOS bias mitigation. Our numerical results evidence that the accuracy of all the considered algorithms is appreciably influenced by the LOS/NLOS conditions of the propagation environment.

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