An Anti-jamming and Anti-spoofing Digital Beamforming Platform for the GNSS-based ERTMS Train Control System

Alessandro Neri, Cosimo Stallo, Andrea Coluccia, Veronica Palma, Pietro Salvatori, Alessia Vennarini, Oscar Pozzobon, Giovanni Gamba, Samuele Fantinato, Mirko Barbuto, Alessio Monti, Filiberto Bilotti, Alessandro Toscano, Francesco Rispoli, Massimiliano Ciaffi

Abstract:	The evolution plan of the European Railways Train Management System (ERTMS) includes the GNSS localization as one of the Game Changer technologies to improve the competitiveness of the ERTMS. GNSS will allow the implementation of cost-effective solutions to reduce the maintenance and operational cost without reducing the safety levels required by railway operations. The inherent low power of satellite navigation signals exposes GNSS-based solution to Radio Frequency threats, namely intentional or unintentional interference, that can lead to performance degradation or denial of service, and to spoofing/meaconing attacks, that can lead to receiver deception and hence to misleading PVT (Position, Velocity and Time) estimation. The aim of this paper is to present an architecture for detection and mitigation of radio-frequency hazards in a rail operational environment. The investigated solution is based on a Digital Beamforming Platform (DBP) coupled with advanced GNSS signal processing techniques for high rejection of GNSS interfering and counterfeit signals. This approach fully exploits the characteristics of the railway context, to support the evolution of the Location Determination System (LDS) based on GNSS in ERTMS Train Control System (TCS). This paper presents the DBP architectural design, focusing on the most meaningful and innovative solution foreseen for the prototype implementation. Each subsystem of the DBP is described in details, and a preliminary assessment of the performances is provided, by means of simulative and analytic tools.
Published in:	Proceedings of the 30th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS+ 2017) September 25 - 29, 2017 Oregon Convention Center Portland, Oregon
Pages:	3538 - 3556
Cite this article:	Neri, Alessandro, Stallo, Cosimo, Coluccia, Andrea, Palma, Veronica, Salvatori, Pietro, Vennarini, Alessia, Pozzobon, Oscar, Gamba, Giovanni, Fantinato, Samuele, Barbuto, Mirko, Monti, Alessio, Bilotti, Filiberto, Toscano, Alessandro, Rispoli, Francesco, Ciaffi, Massimiliano, "An Anti-jamming and Anti-spoofing Digital Beamforming Platform for the GNSS-based ERTMS Train Control System," Proceedings of the 30th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS+ 2017), Portland, Oregon, September 2017, pp. 3538-3556. https://doi.org/10.33012/2017.15144
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