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EU publishes new Galileo Open Service Signal in Space Interface Control Document

EU publishes new Galileo Open Service Signal in Space Interface Control Document
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Updated Galileo ICD Previews New Features for Faster TTFF in 2023

The European GNSS Agency (GSA) released a new Galileo Open Service Signal in Space Interface Control Document (OS SIS ICD), the second issue of this document geared towards GNSS receiver manufacturers. Although the modified signals are not yet broadcast by Galileo satellites, the ICD will allow GNSS receiver manufacturers to prepare for the improved signals, set for debut in 2023.
Among other updates, three new features are introduced to the I/NAV message transmitted on the Galileo E1-B signal component: Reduced Clock and Ephemeris Data (RedCED); Reed-Solomon Outer Forward Error Correction Data (FEC2); and Secondary Synchronization Pattern (SSP).
The OS SIS ICD v.2.0 is available for download in the Programme Reference Documents section of the European GNSS Service Centre (GSC) web portal.

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