Customer: RFI S.p.A.
Duration: February 2006 - December 2008

The Project

Research and Testing Project of a system able to determine the location of vehicles/person in railway tunnels through the use of GNSS satellite systems, especially GPS and, in the future, Galileo.

RadioLabs activities

Provider responsible of the following activities:

1. Analysis and devlopment of the algorithm for the position localization in railway tunnel by means of GPS
   • Analytic study and definition of the procedure or the determination of the position, and associated performance evaluation.
   • Definition of the specifics for the SW module which has to be inserted into the GPS receiver, on the basis of the developed algorithm.
   • Realization of the SW module and analysis of its compatibilità with the GPS receiver performance.
2. Characterization of the GPS canne in tunnels
   • Definition of the scheduling for the measurements which have to be realized inside the tunnels
   • Survey for the selection of the railway tunnel suitable for the measurements
   • Campaign of measurements for the characterization of the transmission channel in the tunnel, at the GPS frequencies and at neighboring bands
   • Derivation of the propagation model in the tunnel, strarting from the experimental data
   • Application of the propagation model to the evaluation of the GPS-based localization algorithm performances in tunnels.
3. Testing for the verification of the functionalities of the developed localization algorithm.