Global Navigation Satellite Systems Engineering, Policy, and Design
The years-long fight over a proposal to recast satellite spectrum near the GPS frequencies for a terrestrial network is now being raised as an issue that could impact efforts to support competitiveness in satellite communications and other sectors of the growing commercial space industry.
By Dee Ann Divis
The Air Force officially announced Friday that Lockheed Martin had been awarded a $7.2 billion contract to build 22 GPS III Follow-on (IIIF) satellites.
By Dee Ann Divis
Once the next-generation GPS III satellites begin launching later this year, a series of updates to the current ground control system from Lockheed Martin will help the U.S. Air Force gain early command and control of the new satellites for testing and operations.
By Inside GNSS
ION GNSS+, the world’s largest technical meeting and showcase of GNSS technology, products and services, will take place September 24-28, 2018 at the Hyatt Regency Miami in Miami, Florida.
This year’s conference will bring together international leaders in GNSS and related positioning, navigation and timing fields to present new research, introduce new technologies, discuss current policy, demonstrate products and exchange ideas.
By Stan Goff
One of the more popular sessions in recent years at the annual ION GNSS+ technical meeting is the panel discussion on a variety of satellite-based navigation systems, and it appears as if Chinese officials will have plenty of updates on its BeiDou navigation and positioning system to share.
By Stan Goff
With Europe’s Galileo constellation in space now expanded to 26 navigation satellites – and Galileo Initial Services available to users worldwide – the infrastructure on the ground that controls them is undergoing a corresponding expansion.
By Inside GNSS
Trimble today announced the launch of a new model of its premium GNSS receiver, the Trimble R10 Model 2 GNSS System. Designed to help surveyors in a wide range of industries work more effectively and productively, the Trimble R10 Model 2 enables reliable, fast and accurate collection of survey data in the field.
By Inside GNSS
Though the Senate approved next year’s funding for the Department of Defense (DOD) just before its Labor Day break there are still hurdles to overcome before the fiscal year runs out on September 30. For the most part further delay should not greatly impact GPS efforts — as long as stopgap funding is secured to keep DOD’s doors open — but extending the deadline will likely put the GPS IIIF program on hold.
By Dee Ann Divis
The first of the U.S. Air Force’s advanced new, higher-power, harder-to-jam GPS III satellites is making its way to the launch pad.
By Inside GNSS
There was a flurry of filings July 9 just as the window closed for public comment on Ligado Networks’ proposal to repurpose satellite frequencies for a terrestrial network — a plan with the potential to interfere with GPS receivers.
The comments emerged as speculation swirled around a July 3 bid by EchoStar for Ligado spectrum supplier INMARSAT. The bid was rejected and, as of press time, EchoStar will have to wait six months before trying again.
By Dee Ann Divis
Ottawa, Ontario, Canada-based GNSS antenna maker Tallysman recently introduced its magnetic mount GNSS antenna the TW7875, designed for precision dual-frequency positioning. The antenna is capable of receiving GPS L1/L5, GLONASS G1, BeiDou B1, Galileo E1/E5a and NavIC L5 signals.
By Inside GNSS
The Korea Research Institute of Ships and Oceans Engineering (KRISO) has awarded UrsaNav, through its agent, Dong Kang M-Tech, a contract to supply an eLoran Transmitter TestBed System in the Republic of Korea. UrsaNav, the exclusive, worldwide distributor of Nautel’s NL Series transmitters, will provide eLoran transmitter technology, as well as timing and control equipment.
By Inside GNSS
CAPE CANAVERAL AIR FORCE STATION, Fla.– The U.S. Air Force’s Space and Missile Systems Center (SMC) Global Positioning Systems (GPS) Directorate achieved a major program milestone Aug. 21, successfully delivering the first GPS III satellite to Cape Canaveral Air Force Station, Florida to begin launch processing.
By Inside GNSS
As the first Lockheed Martin-built GPS III satellite prepares to ship to the launch pad, the U.S. Air Force has declared that the second GPS III satellite is complete, fully tested and ready to launch.
By Inside GNSS
The deck of a tall ship rolled heavily beneath me as a freshening wind whistled through the rigging. A sextant in one hand and a stop watch in the other, I carefully listened. “Tock, Tock, Tock, Tock… the time is now fourteen hours, fifty-eight minutes, Coordinated Universal Time… Dong.” I clicked the stop watch in preparation for checking and winding the ship’s chronometers and measuring the height of the sun at local apparent noon.
By Inside GNSS
