Proposals should aim to develop a robust, close-to-market OS-NMA user terminal. Photo source: GSA.
GSA Program Supports Development, Supply and Testing of Galileo Open Service
March 13, 2017
Before full service of Galileo Open Service (OS) can be achieved, a new generation of OS-Navigation Message Authentication-enabled user terminals must be developed, tested and implemented, says the European GNSS Agency (GSA).
Because of this, the GSA has launched a new funding opportunity to support the development, supply and testing of a Galileo Open Service authentication user terminal. The Galileo OS will soon provide a Navigation Message Authentication (NMA) feature, known as OS-NMA. Via this feature, users can verify that a navigation message comes from a Galileo satellite and not a potentially malicious source. The Open Service is the Galileo program’s free service for positioning, navigation and timing.
The Galileo OS is accessible through the signals at L1, E5a and E5b, whether data or pilot. Several combinations are also possible, such as a dual frequency service based on using L1 and E5a (for best ionospheric error cancellation) or single frequency services (at L1, E5a, E5b or E5a and E5b together) in which case the ionospheric error is removed using a model. Another option is triple frequency services using all the signals together (L1, E5a and E5b), which can be exploited for very precise, centimetric applications, according to the European Space Agency.
OS-NMA Signal-in-Space transmission is expected to begin in 2018, reaching full service capability in 2020. However, before full service can be reached, first the new generation of OS-NMA-enabled user terminals need to be developed, tested and implemented.
To fulfil this need, under its Fundamental Elements funding scheme, the GSA is seeking proposals for the Development, supply and testing of a Galileo open service authentication user terminal (OS-NMA) for the GSA (GSA/OP/23/16).
How to participate
For more on Galileo’s Commercial Service Implementing Decision Adoption, read this Inside GNSS Article by clicking here.
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