Global Navigation Satellite Systems Engineering, Policy, and Design
Whenever the annual Munich Satellite Navigation Summit came around, some GNSS program was usually in the ascendant, while others had reversed direction or found themselves treading water. This year, perhaps for the first time, all four major providers had reason to celebrate as the event’s organizers cut the cake at their 10th birthday party.
By Inside GNSS
The University Park Hotel under construction next to the East Midlands Conference CentreThe British Royal Institute of Navigation has given prospective authors a May 4 deadline for abstracts for its annual conference, NAV12. The theme this year is "GNSS and Beyond."
Authors have a broad choice of navigation and technology topics from GNSS, eLoran and integrated systems technology to satellite navigation vulnerabilities to jamming and space weather to low-cost consumer apps design.
By Inside GNSS
Q: What is Coarse Time Positioning and how does it work?
A: Coarse time positioning is used to provide a position fix using inaccurate time information when tracking sufficiently weak GNSS signals such that the navigation message cannot be extracted reliably. This article presents the key aspects of coarse positioning, including some of its challenges. To start, however, we begin by looking at the role of time within a GNSS receiver.
By Inside GNSS
In-home construction of the first civilian-owned civil GPS spoofer.Over the last few years, several of us in the GNSS community have done our best to convince our colleagues, policymakers, and the general public that unsavory characters with GNSS jammers or spoofers are a genuine threat to GNSS and an orderly society.
"But who would want to use a jammer or spoofer?” people ask.
My response? Hackers, because they can. Thieves planning to snatch expensive cargo. A moonlighting employee in the company car. Worse yet, state actors or terrorists targeting our national infrastructure.
By Inside GNSS
Aerial view of downtown Nashville, Tennessee USAJoin the 250 other technical presenters at this year’s Institute of Navigation GNSS conference and submit your abstract by Friday, March 9.
The U.S. Institute of Navigation sponsors the world’s oldest and largest conference on global navigation satellite systems. ION GNSS 2012 will take place next September 17 through 21 at the Nashville Convention Center in Tennessee. Tutorials and the CGSIC meeting will take place on September 17 and 18.
By Inside GNSS
Nearly 400 system integrators, equipment manufacturers, product/application designers, and other professionals from around the world tuned into a live broadcast web seminar presented by Inside GNSS on February 28 with the subject, “Challenges of GNSS/Inertial Integration.”
A link to the recorded version is available here. If you already registered and would like to review the webinar, just sign in. If you have not yet registered, you may do so now. Registration is free.
By Inside GNSS
Sanjiv AhujaLightSquared announced today (February 28, 2012) that Sanjiv Ahuja has resigned his position as chief executive officer of LightSquared, Inc. He will continue to serve as chairman of the board.
Ahuja’s resignation is the latest development in the company’s attempt to establish a nationwide terrestrial wireless broadband network in spectrum adjacent to that used by GPS and other GNSS L1 services. No explanation was given for his departure.
By Inside GNSS
Dr. Genene FisherOn any given day — especially cloudy winter days — most people may not give a lot of thought to the Sun.
More than 150 million kilometers (93.2 million miles) away, its remoteness belies the enormous forces at work in this yellow dwarf star with a mass 330,000 times that of Earth. If someone asked us to name its harmful effects, we might come up with sunburn, heat stroke, skin cancer.
But many in the GNSS community know better.
By Inside GNSS
Charging the Federal Communications Commission (FCC) with a “rush to judgment,” LightSquared Inc. is seeking an extension of more than a month to comment on the FCC’s intention to prohibit the company from building a high-powered wireless broadband network in RF spectrum next to GPS and other GNSS services.
By Inside GNSS
Topcon CR-G5 GNSS antennaTopcon Positioning Systems (TPS) announced the company’s new CR-G5 high-performance, GNSS choke ring antenna.
Based on the company’s new TA-5 full-spectrum GNSS antenna element, the CR-G5 geodetic antenna offers excellent vertical phase center stability over the GNSS frequency band superior performance in tracking low elevation satellite signals, according to the company.
By Inside GNSS
Dr. Andrey Soloviev, QunavGNSS and inertial technologies have a complicated mutual history.
Once competitors for navigation and positioning applications, they now appear ever more frequently in complementary roles — often within the same solution or system design.
By Inside GNSS
National Physical Laboratory entranceThis free one-day event at the British National Physical Laboratory in Teddington (London) on Wednesday, February 22 will present results of current jamming detection, and consider emerging threats such as meaconing and spoofing.The seminar runs from 9:30 a.m. to 5:30 p.m.
Interested participants must pre-register online.
Todd Humphreys, director of the Radionavigation Laboratory at the University of Texas-Austin will deliver the keynote, "PVT security: privacy and trustworthiness."
By Inside GNSS
Trimble’s year-on-year revenues grew 35 percent to $435.2 million in the fourth quarter of 2011, while GAAP net income declined 20 percent, according to results reported by the Sunnyvale, California–based company on February 2.
For the 2011 fiscal year, revenue was $1.64 billion, up approximately 27 percent from FY 2010.
By Inside GNSS
