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Joint Particle Filter and UKF Position Tracking in Severe Non-Line-Of-Sight Situations

Huerta, Jose M. and Vidal, Josep and Giremus, Audrey and Tourneret, Jean-Yves Joint Particle Filter and UKF Position Tracking in Severe Non-Line-Of-Sight Situations. (2009) IEEE Journal on Selected Topics in Signal Processing, vol. 3 (n° 5). pp. 874-888. ISSN 1932-4553

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Official URL: http://dx.doi.org/10.1109/JSTSP.2009.2027804

Abstract

The performance of localization techniques in a wireless communication system is severely impaired by biases induced in the range and angle measures because of the non-line-of-sight (NLOS) situation, caused by obstacles in the transmitted signal path. However, the knowledge of the line-of-sight (LOS) or NLOS situation for each measure can improve the final accuracy. This paper studies the localization of mobile terminals (MT) based on a Bayesian model for the LOS-NLOS evolution. This Bayesian model does not require having a minimum number of LOS measures at each acquisition. A tracking strategy based on a particle filter (PF) and an unscented Kalman filter (UKF) is used both to estimate the LOS-NLOS situation and the MT kinetic variables (position and speed). The approach shows a remarkable reduction in positioning error and a high degree of scalability in terms of performance versus complexity.

Item Type:Article
Additional Information:This publication is available at http://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=4200690
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:Other partners > Ecole Nationale Supérieure d’Electronique, Informatique et Radiocommunications de Bordeaux - ENSEIRB (FRANCE)
Other partners > Universitat Politècnica de Catalunya - UPC (SPAIN)
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT
Other partners > Ecole Nationale Supérieure de Chimie et de Physique de Bordeaux - ENSCPB (FRANCE)
Université de Toulouse > Université Paul Sabatier-Toulouse III - UPS
French research institutions > Centre National de la Recherche Scientifique - CNRS
Other partners > Université de Bordeaux 1 (FRANCE)
Laboratory name:
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Deposited By:Jean-yves TOURNERET

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