Global Navigation Satellite Systems Engineering, Policy, and Design
A redesign of the GPS satellites under development by Lockheed Martin will add a signal waveform generator, search and rescue payload, laser retroreflector array (LRA), and dual-launch capability beginning with Space Vehicle 9 (SV09).
By Inside GNSS
This new international conference on GNSS technologies and applications for the development of sub-Saharan African countries will take place May 30 and 31 at the new bayside Terrou-Bi hotel and conference center in Dakar, Senegal.
The event targets entrepreneurs and companies from the EU and Africa that use GNSS technologies. The event is designed to showcase and promote African technical competencies with solid potential for success using EGNOS and Galileo services and the space sector in general.
By Inside GNSS
eCall is the European Union (EU) initiative aimed at reducing road casualties by increasing the speed and efficiency of emergency response. It involves a device installed in cars that will automatically dial the EU’s “112” emergency phone number in the event of a serious road accident.
Key data including time, date, and GNSS coordinates will be sent to the Public Safety Answering Point (PSAP) and then relayed to the most appropriate emergency service. The eCall is triggered by airbag deployment and impact sensor information.
By Peter Gutierrez
Working Papers explore the
technical and scientific themes that underpin GNSS programs and
applications. This regular column is coordinated by Prof. Dr.-Ing. Günter Hein, head of Europe’s Galileo Operations and Evolution.
The live webinar took place on March 14, 2013.
WEBINAR PRESENTATION
• Webinar PDF Archive (Registration required)
The world’s four GNSS programs aren’t exactly a classical quartet, weaving Mozart stanzas in disciplined execution.
By Inside GNSS
Conceptual design of ULTRA (ultra low-cost PRS receiver)When European leaders first took up the idea of creating their own GNSS system nearly 20 years ago, they held up the concept of civilian control as a crucial differentiator from existing services operated by national military establishments.
As Galileo nears its operational phase, that principle may manifest itself in a surprising form: the opportunity to offer a range of security-oriented positioning and timing solutions in place of the all-or-nothing alternatives on encrypted services maintained by defense agencies.
By Inside GNSS
This annual conference on the Croatian Adriatic aims at GNSS experts and covers the risks and vulnerabilities of the global navigation satellite systems and efforts to improve accuracy and reliability.
It will take place at Baska on the resort island of Krk in Croatia from April 18 to April 20, 2013.
The deadline for abstracts has passed.
Topics include:
By Inside GNSS
Say what you want about the European capitol — one thing is for sure, Brussels is alive with conversation. With corporate high flyers and political decision makers tripping over one another on their way to long lunch breaks and after-dinner drinks, the chitchat can flow fast and furious.
If one is not careful, idle conversation can turn into rumor and rumor become a “buzz.”
By Peter Gutierrez
Francine Vannicola, Naval Research LaboratoryAs the forthcoming “Time and Navigation” opening next March at the Smithsonian National Air and Space Museum reminds us, modern navigation depends profoundly upon time — the more precise, accurate, and stable a navigation system’s timing is, the more precise, accurate, and stable its positioning capability.
By Inside GNSS
FIGURE 1: (top) Device without case. (bottom) Device with case.Long Term Evolution (LTE) technology in mobile communications, often called 4G, is making its way into a host of consumer devices. It started with data-only modules for Internet connectivity but quickly made its mark on smartphones, automotive communication, and embedded modules that provide fast and reliable wireless data connectivity to the machine-to-machine (M2M) market.
By Inside GNSS
Galileo IOV satellites attached to their launch dispenser and encapsulated beneath the fairing of their Soyuz ST-B launcher. ESA graphic by P. Carril[Updated October 11, 2012] The next two Galileo satellites have been cleared for launch on Friday (October 12, 2012), a couple days later than originally planned.
Follow the Galileo IOV launch live online here.
By Inside GNSS
TABLE 1. Spoofer antenna requirements for various hardened GPS signal types
“Here is Edward Bear, coming downstairs now, bump, bump, bump, on the back of his head, behind Christopher Robin. It is, as far as he knows, the only way of coming downstairs, but sometimes he feels that there really is another way, if only he could stop bumping for a moment and think of it. And then he feels that perhaps there isn’t.”
– A.A. Milne, Winnie-the-Pooh
Is our faith in the integrity and infallibility of the Global Positioning System misplaced or, perhaps, insufficiently grounded?
By Inside GNSS
