The key driver for HGR application class is the ability to detect spoofing and meaconing, therefore determining the authenticity of the location-related data. The system concept is to acquire the same signals from different sites by means of collaborative receivers and/or reference receivers managed by the service owner. Every receiver, knowing its presumed position by using GNSS, is able to infer the emission time of a message, which can be compared with the similar evaluation made from all receivers who decoded the same message. At this point, the system is able to verify the trueness of the presumed position of each receiver by using a voting mechanism (with reference receivers having very large weight in the evaluation). The comparison with GNSS derived position shall allow to validate and to certify GNSS positioning against spoofing. The proposed architecture considers the possibility to interoperate with Service Providers already supporting the Transportation Chains (e.g. fleet management systems).
To see the illustrative diagram of how the HGR application works click here
The HGR will provide two sets of information, as described below:
- The position, as any GNSS receiver (e.g. using NMEA protocol)
- The level of confidence associated to the information reported, including alarms when a spoofing, meaconing or jamming attack is detected, e.g. extending the NMEA protocol.
The HGR will provide two sets of information, as described below:
- The position, as any GNSS receiver (e.g. using NMEA protocol)
- The level of confidence associated to the information reported, including alarms when a spoofing, meaconing or jamming attack is detected, e.g. extending the NMEA protocol.
To see the illustrative diagram of the information provided by the HGR application click here
The system is composed by:
- A set of HGR equipment, installed on the transportation platforms for rail, road and maritime smart transportation (respectively on trains, trucks or vessels);
- The Anti-spoofing and the time synch server(s) to manage the systems and services.
