Galileo

Interference Mitigation in the E5a Galileo Band Using an Open-Source Simulator
July 6, 2016

Interference Mitigation in the E5a Galileo Band Using an Open-Source Simulator

Four global navigation satellite systems are scheduled to be fully operational orbiting Earth in the coming years: the NAVSTAR Global Positioning System (GPS) from the United States, the GLObal NAvigation Satellite System (GLONASS) from Russia, the Compass/BeiDou-2 System (BDS) from China, and Galileo from Europe. A considerably high number of signals, coming from the satellites of those constellations, will share the radio electric spectrum.

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By Inside GNSS
Four-satellite_Galileo_dispenser_web.jpg
June 30, 2016

Four-Satellite Launch Dispenser Ready for Europe’s Galileo Ride on Ariane 5

A new dispenser for a modified Ariane 5 rocket, capable of carrier four satellites into middle Earth orbit, has passed an extended test campaign and approved for launch, removing a final hurdle for accelerating development of the Galileo constellation.

In development since 2012, the new launcher design evolved from the Ariane 5 ES (Evolution Storable) that is used to carry European Space Agency (ESA) automatic transfer vehicle (ATV) supply spacecraft into low Earth orbit.

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By Inside GNSS
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Here to Stay – Europe Committed to Long Haul in Space with Galileo
June 10, 2016

Here to Stay – Europe Committed to Long Haul in Space with Galileo

Lowri Evans, DG GROWTH. Photo by Peter Gutierrez

As ranking European Union (EU) official, Commissioner for Internal Market, Industry, Entrepreneurship and SMEs, Elzbieta Bienkowska set the tone in a keynote speech that anticipated some major issues to be addressed in the upcoming “EU Space Strategy,” the EUropean Commission’s next big new European space policy document, expected to come out later this year.

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By Inside GNSS
GSA Setting Up Galileo Reference Center Next Door to ESTEC
June 3, 2016

GSA Setting Up Galileo Reference Center Next Door to ESTEC

Officials signed an agreement this week to build a Galileo Reference Center in Noordwijk, the Netherlands, just across the road from The European Space Agency’s European Space Research and Technology Center (ESA/ESTEC).

The Galileo Reference Center (GRC), to be administered by the European GNSS Agency (GSA), will monitor and assess the quality of the delivery of Galileo services, i.e., the performance of the Galileo Service Operator. The GSA is currently selecting said service operator through an arduous tender process.

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By Inside GNSS
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Successful Launch Continues Build-Out of Galileo Constellation

Successful Launch Continues Build-Out of Galileo Constellation

The European GNSS program added two more spacecraft to its constellation this morning (May 24, 2016) with the launch of Galileo satellites 13 and 14. They lifted off together at 08:48 GMT (10:48 CEST, 05:48 local time) atop a Soyuz rocket from French Guiana.

This seventh Galileo launch went by the book: the first three Soyuz stages placed the satellites safely into low orbit, after which their Fregat upper stage hauled them the rest of the way into their target medium-altitude orbit in plane A, slots 2 and 6.

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By Inside GNSS
Navitec 2016

Navitec 2016

ESTEC interior

NAVITEC is an annual navigation conference hosted by the European Space Agency (ESA). This year’s event will take place at ESA’s Space Research and Technology Center (ESTEC) in Noordwijk, Netherlands on December 14, 15 and 16, 2016. The theme is "Navigating the Future of Transportation."

The scope of the workshop includes navigation equipment and techniques, including receivers, payloads, signals, navigation algorithms, signal processing techniques and terrestrial and space GNSS applications.

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By Inside GNSS
The "Brussels View" from Prague
May 19, 2016

The “Brussels View” from Prague

Carlo des Dorides, GSA Executive Director

Last October, the European GNSS Agency (GSA) Administrative Board reelected Carlo des Dorides as executive director of the GSA, giving him a second — and final — four-year term in charge of this key agency responsible for supporting the effective operation, maintenance, and security of Europe’s satellite navigation systems. We met with him recently at the GSA office in Prague to learn how he plans to see out his mandate.

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By Peter Gutierrez
Listening for RF Noise

Listening for RF Noise

GNSS signals are vulnerable to interference due to being extremely weak when received on Earth’s surface. Therefore, even a low-power interference signal can easily disrupt the operation of commercial GNSS receivers within a range of several kilometers.

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By Inside GNSS
Two More Galileo Satellites Set Healthy
April 29, 2016

Two More Galileo Satellites Set Healthy

Europe’s 11th and 12th Galileo satellites being prepared for launch in the clean room at Europe’s Spaceport in Kourou, French Guiana. Photo: ESA/CNES/Arianespace/Optique Vidéo du CSG/Hrouffie De Francisci

Europe’s latest navigation satellites, launched last December, have been officially commissioned into the Galileo constellation, and are now broadcasting working navigation signals.

Galileos 11 and 12 were launched together on a Soyuz rocket from Europe’s Spaceport in French Guiana on 17 December.

The satellites’ navigation payloads were submitted to a gamut of tests, centered on the European Space Agency’s Redu center in Belgium, which possesses a 20 meter-diameter antenna to analyze the satellites’ signals in great detail.

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By Inside GNSS
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