GNSS (all systems)

A Soyuz rocket carried Galileo 27 and 28 into space in December 2021; Image courtesy ESA copy
September 7, 2022

Two new Galileo satellites deliver improved signals

Europe has deployed two new Galileo satellites within its constellation, adding to the existing 26 operational satellites in orbit. The entry into service of satellites 27 and 28 follows an exhaustive 2022 testing campaign. In a recent communication, the European Space agency (ESA) said the new deployment will result in a measurable increase in positioning accuracy and improved overall performance of the Galileo system.

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By Peter Gutierrez
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shutterstock_1088000534
August 11, 2022

Q: How can ground monitoring of GNSS constellations improve on the performance and integrity commitments made by GNSS constellation providers regarding the integrity of their signals and services? What performance benefits might result?

A: The “GNSS Solutions” column in the May/June issue of Inside GNSS [1] described the commitments that have been made by GNSS service providers in terms of limits on Signal-in-Space (SIS) range errors, satellite failure probabilities, and times to alert and recover from failures.

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By Inside GNSS
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Screen Shot 2022-07-28 at 12.52.46 AM
July 27, 2022

Brussels View: Europe’s Sharp Eye on Positioning, Navigation and Timing

The European Space Agency’s new navigation head, Francisco-Javier Benedicto Ruiz, has a lot to say about GNSS, both present and future. We recently spoke with him about his views on satellite navigation, signal vulnerability and authentication, and the agency’s working relationship, or not, with Russia. The technical team behind the Galileo authentication service and industry representatives developing alternative positioning, navigation and timing solutions also share insights.

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By Peter Gutierrez
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