Calculation of the User-Direction in an Always Best Positioned Mobile Localization System

In an Always Best Positioned (ABP) localization system the output of different localization techniques are fused together to get an even better position accuracy. Besides the information about the position of a user, his viewing or walking direction is also important. This paper describes an extension of our mobile APB system that uses RFID tags and infrared beacons. We describe how different direction information – derived from different sensors or calculations – can be fused together with the help of Dynamic Bayesian networks.

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