Global Navigation Satellite Systems Engineering, Policy, and Design
The ITU (InternationalTelecommunications Union) and the BIPM (International Bureau of Weights and Measures) will hold a workshop on the Future of Universal Coordinated Time (UTC) on September 19 and 20 at the ITU offices, Avenue Giuseppe-Motta, in Geneva, Switzerland.
By Inside GNSS
The four Galileo in-orbit validation (IOV) satellites now on orbit have begun broadcasting the “offset” between the GPS and Galileo system time, accurate to a few billionths of a second, according to the European Space Agency.
With satellite navigation based around the highly accurate measurement of signal travel times, both Galileo and GPS have their own internal reference time systems used to synchronize all system clocks, including those in the ground segment, on satellites, and in receivers. Galileo System Time is about 50 nanoseconds or less apart from GPS time.
By Inside GNSS
This European Commission-sponsored workshop will take place at the EC’s Charlemagne building, Room Alcide de Gasperi (GASP), Rue de la Loi 170 in Brussels.
It begins at 9 a.m. and ends at noon.
Participants will discuss their opinions and experiences with the European GNSS downstream applications sector.
The goal is to "maximise and ensure the market uptake of European GNSS applications," according to the organizers.
By Inside GNSS
Course 346 is a condensed, 4-day version of NavtechGPS’ most popular course for those who want to save on lodging and overhead. It will take place at the company offices, 5501 Backlick Road, Suite 230, in Springfield, Virginia on June 10, 11, 12 and 13.
The last day to register is May 24.
By Inside GNSS
The 53rd meeting of the Civil GPS Service Interface Committee (CGSIC) will take place on Monday and Tuesday, September 16 and 17 just before the opening of the ION GNSS conference at the Nashville Convention Center in Nashville, Tennessee.
Attendance is free and registration is open at the website below.
The keynote speaker at Tuesday morning’s plenary is a Smithsonian
geographer, Dr. Andrew K. Johnston, who will talk about the museum’s new
permanent exhibit "Time and Navigation: The Untold Story of Getting
from Here.
The European Commission (EC) Directorate-General for Enterprise and Industry will hold a workshop in Brussels, Belgium, on June 4 to address applications of the European Union satellite navigation programs, Galileo and EGNOS.
The first part of the workshop will focus on the past and future activities of the EC aiming to maximize and ensure the market uptake of European GNSS downstream applications.
By Inside GNSS
GPS IIF-4 logo. United Launch AllianceThe fourth GPS Block IIF satellite, space vehicle number (SVN) 66, was launched successfully today (May 15, 2013) on board a United Launch Alliance Atlas V rocket at 5:38 p.m. EDT from Cape Canaveral Air Force Station, Florida.
It was the first time that an Atlas V had been used to launch a GPS spacecraft.
By Inside GNSS
System engineers across the country may soon be planning, in some cases perhaps for the first time, what they would do if they could not use the GPS service.
The effort is part of an expanded White House initiative to protect the nation’s critical infrastructure. Alhough infrastructure protection programs have been under way for some time, they did not necessarily address GPS vulnerabilities explicitly.
By Inside GNSS
Existing methods for improving the GNSS performance commonly attempt to enhance the signal processing and navigation estimation parts of a single receiver. Such approaches, however, leave unexplored the potential benefits inherent to the integration of data from multiple receivers.
By Inside GNSS
Paul Flament, Head, European Commission Satellite Navigation Unit. Photo by Peter GutierrezPaul Flament is head of the European Commission’s Satellite Navigation Unit. His primary job, essentially, is to manage the Galileo program of the European Union (EU). With four operational satellites now in orbit and an ambitious schedule to set in place a constellation of 26 by 2015, Flament sat down with Inside GNSS to talk about a number of pressing issues that could affect the future of Galileo.
Flament first addressed the EU GNSS Regulation, the much-anticipated document that sets out just who will do what in the future Galileo program.
By Inside GNSS
Gen. William Shelton. DoD photoThe Air Force will decide this fall whether to build more GPS III satellites or move to a new generation of spacecraft, the leader of Air Force Space Command told Congress last week.
“We’re on contract right now . . . through (GPS III) satellite vehicle number eight. Satellite vehicles nine and beyond – the acquisition strategy for that – will be debated in the fall,” General William Shelton, commander of Air Force Space Command (AFSPC), told the House Armed Services Committee on April 25.
By Inside GNSS
Yang Yuanxi, China National Administration of GNSS and ApplicationsChina will begin launching BeiDou-2 satellites again in 2013 as it begins its test program for the third generation of the nation’s GNSS program.
After launching 16 satellites since 2007 (including six last year) to establish the current regional constellation with 14 operational satellites and publishing an official interface control document December 27, China called a halt to further launches to evaluate the performance of the system and complete a development plan for the system.
By Inside GNSS
DoD CIO Teresa Takai. DoD photoA Department of Defense Directive (DoDD 5144.02) issued April 22 clarifies the positioning, navigation, and timing (PNT) responsibilities for Teresa Takai, the assistant secretary of defense for networks and information integration (NII) and the DoD’s chief information officer (CIO).
By Inside GNSS
