ASGARD

Galileo Open Service Navigation Message Authentication (OSNMA) allows the assessment of the authenticity of the data provided through the signal in space to detect spoofing attempts and it will contribute to improving the robustness of GNSS for applications in which safety and security are concerned. In the maritime domain, taking advantage of advanced data is crucial for better performance in a plethora activities.

In the context of addressing the users needs in the maritime sector, targeting the development of shipborne double-frequency receivers, the ASGARD (Advanced Shipbone GAlileo Receiver Double Frequency) project was conceived to take advantage of all the benefit of Galileo OS features (i.e., improved performance and robustness thanks to dual-frequency and OSNMA capabilities). 

The project’s outcome is a complete, close-to-market shipborne integrated equipment, compliant with regulatory standards for Vessel Monitoring Devices as defined by the European Fisheries Control Agency - EFCA and national regulations. 

Moreover, the ASGARD solution intends to  disrupt current market solutions through the first use of anti-spoofing cybersecurity protection technology and improved accuracy with dual frequency, enhancing the fishery Vessel Monitoring Systems with EGNSS Galileo Open Service (OS).

The ASGARD project is divided into a set of objectives that define the complete scope of the project:

• Development of Dual Frequency Multi-Constellation Galileo shipborne receiver
• Type approval IEC 61108-3. Static and dynamic laboratory test campaign in the laboratory following IEC 61108-3 (Galileo) and IEC-61108-1 (GPS)
• Galileo OSNMA implementation for verifying the authenticity of the Galileo navigation message

The receiver is based on two already existing products: PRESENCE2 (GMV product) and R5 (SAAB equipment).

Challenge and technical solution

The project focused on developing a multi-constellation and double frequency (E1/E5) maritime receiver that uses Galileo and that complies with European and International specifications, i.e., IEC 61108-3 under the European MED WheelMark and International Maritime Organization MSC 401 (95) and MSC 432 (98). 

Likewise, the receiver implemented the required algorithms to process Galileo OSNMA according to the specifications set by the European Commission for this service. The use of Galileo OSNMA functionality will ease the use of the ResilientPNT concept in maritime navigation.