EUSPA releases updated OSNMA documents

EUSPA releases updated OSNMA documents

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The European Union Agency for the Space Programme (EUSPA) along with the European Commission, have published guidelines that specify the baseline applicable to the Galileo Open Service Navigation Message Authentication (OSNMA) receiver service provision phase. The new documents include the OSNMA Signal-in-Space (SIS) Interface Control Document (ICD), and OSNMA Receiver Guidelines.

The OSNMA SIS ICD specifies, among other things, the interface between the Galileo Space Segment and the Galileo User Segment. This document is an addition to the Galileo Open Service (OS) SIS ICD.

The OSNMA Receiver Guidelines provide generic instructions for the user segment implementation of the OSNMA functionality and complement the OSNMA SIS ICD. Additionally, the guidelines explain user capabilities and steps to implement to verify the authenticity of the Galileo navigation message.

Both documents will be used for the upcoming OSNMA Service Provision Phase that will begin after the OSNMA Service Declaration. They have been developed as an evolution of the Galileo OSNMA User ICD for test phase (v1.0) and the Galileo OSNMA Receiver Guidelines for test phase (v1.1). Copies of the documents can be found here.

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