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Map-aided indoor mobile positioning system using particle filter

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3 Author(s)
Evennou, F. ; France Telecom R&D, Grenoble, France ; Marx, F. ; Novakov, E.

A framework for positioning and tracking problems in indoor environments using particle filters has been developed and applied to a WLAN location determination technique. The use of particle filtering represents an interesting way to handle the variations of the signal strength measurements. It can also aggregate in a simple way different information like signal strength and the map of a building. This type of information is very useful to obtain correct trajectories without wall-crossings. Constraining this filter on a Voronoi diagram of the building decreases the complexity of the method and improves its stability as the particles cannot be trapped in a room. In this paper, particle filtering and its constraint on a Voronoi diagram are presented, with their performances in indoor environments by combining WLAN signal strength and fingerprinting.

Published in:

Wireless Communications and Networking Conference, 2005 IEEE  (Volume:4 )

Date of Conference:

13-17 March 2005