Azimuth based localization for mobile phones

Azimuth based localization for mobile phones

Based on measured acceleration and compass data of smart phones a concept for GPS-free localization and traveling route estimation is presented. The built-in compass is used to measure the relative direction changes of the traveling user. The resulting azimuth trajectories are then successively matc...

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Hauptverfasser: Thomas, A., Geldmacher, J., Gotze, J., Coersmeier, E.
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Sprache:eng
Schlagworte:
Azimuth
Compass
Current measurement
Distortion measurement
Junctions
Mobile handsets
Trajectory
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creator Thomas, A.
Geldmacher, J.
Gotze, J.
Coersmeier, E.
description Based on measured acceleration and compass data of smart phones a concept for GPS-free localization and traveling route estimation is presented. The built-in compass is used to measure the relative direction changes of the traveling user. The resulting azimuth trajectories are then successively matched to a vectorized street map. In order to relate the measured trajectory to the street map data, it has to be scaled correctly by the current user velocity. To estimate the current velocity, pattern matching is applied to the acceleration sensor data to detect the current means of transportation (MOT). By associating typical velocities with each MOT, a set of possible scaled azimuth trajectories can be found.
doi_str_mv 10.1109/ICL-GNSS.2011.5955272
format Conference Proceeding
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source IEEE Electronic Library (IEL) Conference Proceedings
subjects Azimuth
Compass
Current measurement
Distortion measurement
Junctions
Mobile handsets
Trajectory
title Azimuth based localization for mobile phones
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