TU Braunschweig


Hänsel, F.; Ganzelmeier, L.; Becker, U.; Schnieder, E.:
Dynamic experimental validation for future satellite navigation systems.
Proceedings of the 5th European Congress and Exhibition on Intelligent Transport Systems and Services - HITS 2005, Hannover, 2005.


Safe operation control in non-guided traffic requires high accuracy and availability of vehicle localisation technology. Normally these requirements for vehicle localisation systems can only be met by complex multi-sensor systems. Satellite-based localisation technology has in recent times been increasingly used in traffic applications. However, satellite-based localisation requires the reception of signals from at least four satellites. But on many tracks, this visibility prerequisite cannot be fulfilled because of shadowing effects from the natural environment, buildings etc. This results in a considerable loss of localisation availability. At the Technical University of Braunschweig therefore a method and a test bed has been developed within the "SATNAB" project, which allows the measurement of the accuracy and availability of satellite positioning receivers.

This paper gives an overview of the used methodologies in order to analyse satellite navigation systems in general and satellite-based vehicle localisation systems in detail. The structure of the used mobile test bed in form of a measurement vehicle is presented in details. The build up equipment allows qualifying single satellite receivers up to complete vehicle localisation technologies.