Galileo OSNMA workshop highlights preliminary test results

Galileo OSNMA workshop highlights preliminary test results

On 28 June 2022, the EU Agency for the Space Programme (EUSPA) held an online workshop about the ongoing testing of the Galileo Open Service – Navigation Message Authentication (OSNMA). The event was an opportunity to both learn about the status of the testing phase and discuss preliminary results. As to the latter, highlights included:

All OSNMA-enabled receivers tested according to the expected performance. Testing demonstrated that the use of OSNMA does not degrade the quality of the Position, Velocity and Time (PVT). Furthermore, tested receivers had an availability of at least 95% and a Time to First Fix (TTFF) in line with the testing service performance.   
Septentrio receivers, which are geared towards those sectors requiring the highest level of security (e.g., maritime, mining, rail, defence, aerospace, drones, advanced driver-assistance systems, telecom, etc.), are OSNMA ready. OSNMA is implemented within the Septentrio receiver using the proprietary Advanced Interference Mitigation (AIM+) tool. 
An OSNMA-enabled GNSS receiver designed specifically for boat security called NaviSoC® was successfully tested, performing optically while using OSNMA. Although initially designed for the maritime sector, engineers are confident that the GNSS receiver will be able to address all major market segments. The team is currently looking in to the cross-authentication capability, to be ready when/if it will be included in the service baseline. 
An STM Teseo V chip with firmware co-developed by STM and FDC contains algorithms to protect the integrity of OSNMA assets against jamming, spoofing and other security concerns, with applications in the area of smart tachographs and potentially beyond.  

The initial results show that, although the Galileo OSNMA Public Observation Test Phase continues, it has already successfully provided important feedback that EUSPA can use to enhance the service’s functionality. 

Testing remains ongoing – and you can still participate 

The Galileo OSNMA is a data authentication function that will be freely accessible worldwide. The pioneering service will pave the way towards robust PVT for users of the Galileo Open Service.

In preparation for its service declaration, GNSS receiver manufacturers, integrators and application developers are encouraged to continue testing the Galileo OSNMA. This testing is done via a Signal in Space (SiS) and is meant to assess the service’s performance across a range of scenarios and use cases. 

Relevant interested parties can still register for the Public Observation Test Phase by accessing the OSNMA Public Observation webpage

The final workshop is foreseen to take place at the end of 2022.

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