Galileo

Possible Compass Signal Specifications.jpg
March 2, 2011

Beihang Authors Suggest TMBOC Design for China’s Compass B1 Civil Signal

Despite the fact that China’s rapidly developing global navigation satellite system now has seven spacecraft in orbit intermittently broadcasting test signals, it is the only GNSS provider that has not yet published a draft version of its interface control document (ICD), although one has reportedly been completed for more than a year.

Against that background, any new source of information about the directions of the Compass design — official, semi-official, or other — draws special attention.

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By Inside GNSS
ESA Conducts Europe-Wide Galileo Satellite Launch Dress Rehearsal
February 25, 2011

ESA Conducts Europe-Wide Galileo Satellite Launch Dress Rehearsal

The first two of four Galileo In-Orbit Validation satellites are due for launch in August 2011. ESA illustration

Europe’s GNSS system is still six months away from first launch of its in-orbit validation (IOV) spacecraft, but one Galileo satellite has already been put through its paces, taking center stage in a Europe-wide exercise conducted recently by the European Space Agency (ESA).

The satellite in question never left the confines of its Thales Alenia Space (TAS) integration facility in Rome, Italy, but was connected to a distant trio of control centers during the nine-day System Compatibility Test Campaign (SCTC-1), which began on January 25.

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By Inside GNSS
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Galileo Mid-Term Review Foresees €1.9 Billion in Additional Costs
January 18, 2011

Galileo Mid-Term Review Foresees €1.9 Billion in Additional Costs

Antonio Tajani, EC Vice-President. EC photo

A European Commission (EC) communication sent to the European Parliament and European Council today (January 18, 2011) estimates that completing a fully operational capability (FOC), 30-satellite Galileo system and the European Geostationary Navigation Overlay Service (EGNOS) will cost an additional €1.9 billion above the €3.4 billion already allocated.

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By Inside GNSS
Dorides to Head European GNSS Agency [updated]

Dorides to Head European GNSS Agency [updated]

[updated January 18, 2011] Carlo des Dorides has been named as the new executive director of the European GNSS Agency (formerly the Galileo Supervisory Authority or GSA).

He will succeed Heike Wieland, who leaves at the end of January to become principal legal council at the European Patent Office. Wieland served as GSA acting director following the departure of Pedro Pedreira last June.

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By Inside GNSS
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Gianni-500px.jpg
January 9, 2011

A Model-Based Approach

For the complete story, including figures, graphs, and images, please download the PDF of the article, above.

Galileo receiver designers require formal interface specifications for the Galileo signal-in-space (SIS) in order to write unambiguous and accurate specifications for Galileo receivers. To compute their positions, Galileo receivers must be able to retrieve timing and orbital information from the data stream conveyed in Galileo analog signals.

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By Inside GNSS
GNSS Interference, Detection and Mitigation

GNSS Interference, Detection and Mitigation

Bushy House

Britain’s Position, Navigation and Timing Network of the Digital Systems
KTN (Knowledge Transfer Network) presents a one-day workshop on
"GNSS Interference, Detection and Mitigation."

Professor Martyn Thomas will present the
conclusions of the Royal Academy of Engineering report on GNSS vulnerability, which was released on March 8.  

The workshop will take place at Bushy House, National Physical Laboratory, Teddington, Middlesex on Thursday, March 10 2011 from 10 a.m. to 4 p.m.

Topics include:

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By Inside GNSS
FucinoAntennas_lo.jpg
December 30, 2010

Europe’s Galileo Reaches Many 2010 Milestones – but Satellite Launches Still Delayed

Soyuz launch of IOV satellite. ESA illustration

Europe’s Galileo space-based navigation system still awaits launch of its first in-orbit validation (IOV) satellites — now set for August 2011 — but the program is rolling out a steady stream of announcements of milestones reached.

Most recently, European Commission (EC) and European Space Agency (ESA) officials inaugurated the Fucino Galileo Control Center, 130 kilometers (81 miles) east of Rome, which will be responsible for the Ground Mission Segment.

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By Inside GNSS
GMV Will Launch Fully Hosted Software GPS Receiver at Mobile World Congress
December 22, 2010

GMV Will Launch Fully Hosted Software GPS Receiver at Mobile World Congress

GMV will launch the SRX-10, a software GPS receiver for mass-market applications, at this year’s GSMA Mobile World Congress, scheduled February 14–17 in Barcelona, Spain.

As a fully hosted solution, all SRX-10 receiver functions — even signal acquisition and tracking — can be hosted on a general purpose CPU with only the requirement of adding on a low cost RF front-end, according to the company.
The company cites other benefits offered by its new software receiver, particularly its substantial flexibility and upgradeability.

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By Inside GNSS
SpectraTime Announces Galileo PHM Contract Award
December 1, 2010

SpectraTime Announces Galileo PHM Contract Award

SpectraTime passive hydrogen physics package

SpectraTime has announced that it signed an €11 million contract with Selex Galileo S.p.A to supply the core element of the passive hydrogen masers (PHMs) for the first 14 full operational capability (FOC) Galileo satellites.

A second contract to supply the secondary atomic clocks (Rubidium Atomic Frequency Standards) should be signed in early 2011, according to the Neuchâtel, Switzerland­–based member company of the Orolia Group.

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By Inside GNSS
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