Global Navigation Satellite Systems Engineering, Policy, and Design
![Dorides to Head European GNSS Agency [updated]](https://insidegnss.com/wp-content/uploads/2018/01/Des Dorides.jpg)
[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.
By Inside GNSS
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.
By Inside GNSS
FIGURES 1, 2 & 3For the complete story, including figures, graphs, and images, please download the PDF of the article, above.
In satellite navigation, a GNSS receiver must account for several sources of error such as relativistic effects, atmospheric propagation delay, offset of satellite clocks from system time and satellite ephemeris. In order to accurately compute user position, velocity, and time (PVT), these errors need to be predicted/estimated precisely.
By Inside GNSS
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:
By Inside GNSS
NavTech GPS will offer its 2011 west coast GNSS technical seminars at the Doubletree Hotel in San Diego, California from Monday, March 28 through Friday, April 1.
Over 25 years, NavTech GPS has provided GPS/GNSS applications solutions for military and research customers, with product choices from more than 30 manufacturers, and has organized basic and advanced GNSS seminars for engineers and technical professionals all over the United States.
The San Diego seminars include:
By Inside GNSS
Spirent Communications, long established in the laboratory test marketplace with its line of navigation and positioning simulators, has extended its product development into real-world environments by introducing a GNSS record and playback system (RPS).
By Inside GNSS
The GPS program continues progress on several fronts — in space and on the ground.
During fall 2010, the U.S. Air Force and the Raytheon Company team developing the GPS Advanced Control Segment (OCX) successfully carried out an integrated baseline review (IBR) for the next-generation system on schedule.
When completed in 2015 under the current schedule, GPS OCX will deliver control segment enhancements designed to provide secure, accurate and reliable navigation and timing information to military, commercial and civil users.
By Inside GNSS
Soyuz launch of IOV satellite. ESA illustrationEurope’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.
By Inside GNSS
Col. Bernard GruberThe GPS Directorate completed its second Annual GPS Enterprise Review (AGER) on December 17, concluding that the program has achieved major milestones in developing and deploying modernized GPS capabilities.
Col. Bernard Gruber, GPS program director at the Space and Missile Systems Center, Los Angeles Air Force Base, led his team through a Defense Acquisition Board (DAB) review chaired by Frank Kendall, deputy undersecretary of defense for acquisition, technology and logistics, and attended by other senior Department of Defense (DoD) officials.
By Inside GNSS
Russian President Dmitry Medvedev. Photo courtesy of Russian Presidential Press and Information Office Russian President Dmitry Medvedev has fired two space officials and reprimanded the head of Roscosmos, the Russian space agency, in connection with the loss of three GLONASS satellites earlier this month.
By Inside GNSS
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.
Proton rocketThe recent loss of three GLONASS-M satellites in space resulted from a series of mistakes made by the Russian Energia rocket corporation, the head of the Russian state commission probing the incident said today (December 17), according to the state news agency RIA-Novosti.
By Inside GNSS
China successfully launched the seventh BeiDou-2 satellite — the second inclined geostationary orbit (IGSO) — today (4 a.m., December 18 local time) from the Xichang Satellite Launch Center in Sichuan province.
In 2010 China added five spacecraft to its constellation.
By Inside GNSS
