Global Navigation Satellite Systems Engineering, Policy, and Design
OlinkStar CC100-BG Beidou-GPS moduleDespite the absence of official published specifications for China’s Compass/Beidou-2, a number of GNSS companies have announced plans to build Compass-capable receivers — in some cases “future-proofing” their products so as to be upgradeable when a Beidou-2 Interface Control Document becomes available.
By Inside GNSS
Trimble has acquired the Terralite assets from Novariant, Inc., to expand the Sunnyvale, California–based company’s portfolio of positioning solutions.
By Inside GNSS
A new report on the GPS program from the Government Accountability Office (GAO) finds the situation considerably improved from last year, when its prediction of a significant risk of the satellite constellation falling below 24 satellites set off alarms in Congress and among the user community.
By Inside GNSS
Calgary, Alberta: Canadian high-tech center and home to rivals NovAtel and Hemisphere GPSTwo Canadian companies — NovAtel and Hemisphere GPS — that over the years had positioned their products somewhat separately along the GNSS OEM technology spectrum appear to be moving toward a more head-to-head competition.
By Inside GNSS
[UPDATED Oct. 21, 2010] Contestants from all over the United States and the world have sent in their new GNSS apps to the USA Challenge — the North America regional contest in the 2010 European Satellite Navigation Competition (ESNC).
The judges, all GNSS business and technology experts, have ranked the submissions.
And the five best satellite navigation applications ideas are . . .
By Inside GNSS
The U.S. Air Force and the Raytheon Company team developing the GPS Advanced Control Segment (OCX) has successfully completed an integrated baseline review (IBR) for the next-generation system on schedule.
By Inside GNSS
Recent action by the U.S. Senate Appropriations Committee has advanced a Fiscal Year 2011 (FY11) Defense spending bill (S. 3800) that essentially accepts the GPS elements of President Obama’s budget proposal, including $40.9 million for the high-integrity GPS (HIGPS) demonstration project.
By Inside GNSS
Norway and the European Commission signed a cooperation agreement on satellite navigation last week (September 22) that will make the Scandinavian nation — which is a member of the European Space Agency (ESA) but not the European Union — a fuller participant in the EU’s GNSS program.
By Inside GNSS
Catamaran Hotel, San DiegoThe Institute of Navigation International Technical Meeting (ITM) will take place January 24-26 at the Catamaran Hotel on Mission Bay in San Diego California.
Paul Kline of Honeywell Aerospace is the general chair. Jade Morton of Miami University, Ohio, is the program chair.
"Robotics Navigation" is the plenary session topic. Invited speakers will discuss current trends and future technologies that support navigation for surveillance, search and rescue, undergound and underwater robotics and unmanned air vehicles.
By Inside GNSS
Moscone CenterThe 2010 American Geophysical Union Fall Meeting will be held at the Moscone Convention Center in San Francisco, California from Monday, December 13 to Friday, December 17.
There are dozens of GNSS-related presentations at this AGU mega-meeting of 16,000 space and earth scientists. The preliminary program lists 770 scientific sessions in climate change, space weather, planetary exploration, volcanism and seismology, Earth’s magnetic field and more.
By Inside GNSS
FIGURE 1: Screenshot of RF simulation software showing GPS + GLONASS + Galileo constellationsIn the first article in this series (Inside GNSS, July/August, 2010) we looked at the range of tasks that require GNSS signal simulation during design, manufacturing, certification, and maintenance of GNSS equipment. The second installment (Inside GNSS, September, 2010) described a range of simulation solutions.
In this final article, we try to find a simulation solution that best suits a particular task.
By Inside GNSS
GNSS utilization of the S-band portion of the radio spectrum provides some challenges to designers of both GNSS navigation signals as well as signals used by other services, in terms of interference avoidance and signal power.
An important existing user of S-band spectrum is the Globalstar communications satellite system. The voice and data services provided by Globalstar employ the 2483.5–2500 MHz band for its satellite downlink communications to user terminals. Additionally, these satellites use multi-beam antennas to enable frequency reuse.
By Inside GNSS
Lingotto Fiere, Turin/Torino, ItalyThe second European conference and exhibition on smart infrastructures, infomobility, telematics and Galileo and other GNSSes will take place at Lingotto Fiere in Turin, Italy on November 11-12, 2010.
Presenter abstracts are due by October 7, 2010.
These subjects will be covered in the conference and/or the exhibit area:
By Inside GNSS
