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Detection of variance changes and mean value jumps in measurement noise for multipath mitigation in urban navigation

Spangenberg, Mariana and Tourneret, Jean-Yves and Calmettes, Vincent and Duchâteau, Grégoire Detection of variance changes and mean value jumps in measurement noise for multipath mitigation in urban navigation. (2008) In: 42nd Asilomar Conference on Signals, Systems and Computers, 26-29 Oct 2008, Pacific Grove, United States .

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Abstract

This paper studies an urban navigation filter for land vehicles. Typical urban-canyon phenomena as multipath and GPS outages seriously degrade positioning performance. To deal with these scenarios a hybrid navigation system using GPS and dead-reckoning sensors is presented. This navigation system is complemented by a two-step detection procedure that classifies outliers according to their associated source of error. Two different situations will be considered in the presence of multipath. These situations correspond to the presence or absence of line of sight for the different GPS satellites. Therefore, two kinds of errors are potentially “corrupting” the pseudo-ranges, modeled as variance changes or mean value jumps in noise measurements. An original multiple model approach is proposed to detect, identify and correct these errors and provide a final consistent solution.

Item Type:Conference or Workshop Item (Paper)
Additional Information:Detection of variance changes and mean value jumps in measurement noise for multipath mitigation in urban navigation. In: Signals, Systems and Computers, 2008 42nd Asilomar Conference on Publication, 2008, pp. 1193-1197. ISSN: 1058-6393 ISBN: 978-1-4244-2940-0
Audience (conference):International conference proceedings
Uncontrolled Keywords:
Institution:French research institutions > Centre National des Etudes Spatiales - CNES (FRANCE)
French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Ecole Nationale de l'Aviation Civile - ENAC (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT (FRANCE)
Université de Toulouse > Institut Supérieur de l'Aéronautique et de l'Espace - ISAE (FRANCE)
Other partners > Rockwell Collins (FRANCE)
Other partners > Thales (FRANCE)
Other partners > Telecom ParisTech (FRANCE)
Université de Toulouse > Université Paul Sabatier-Toulouse III - UPS (FRANCE)
Université de Toulouse > Université Toulouse - Jean Jaurès - UT2J (FRANCE)
Université de Toulouse > Université de Toulouse I-Sciences Sociales - UT1 (FRANCE)
Other partners > Direction Générale de l’Aviation Civile - DGAC (FRANCE)
Laboratory name:
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Deposited By: Cécile de_roquemaurel
Deposited On:19 Oct 2009 15:44

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