GSM-Railway is the ground to train radio communication system currently under deployment along the European railway infrastructure. 150.000 km of railway track are foreseen to be covered in Europe in the coming years. The system is designed to ensure different communication services between ground and trains and is replacing progressively various old analogue radio equipment. It is one of the components of the “Euroradio” system, managing voice and signalling data. As a component of a critical infrastructure, GSM-R is a potential target for intentional electromagnetic interference. Indeed, malicious attacks can generate and propagate electromagnetic energy into the GSM-R frequency bands with the objective to impact the whole railway system. This paper presents a methodology based on the error vector magnitude parameter enabling to detect the presence of jamming signals at the receiver. This early detection can then be used by the railway system to appropriately react.
