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Environment

December 18, 2012

Civil Galileo System Poses New Options for Secure Services

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.

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By Inside GNSS
November 17, 2012

7th GNSS Vulnerabilities and Solutions Conference

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:

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By Inside GNSS
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November 14, 2012

Galileo Round Up

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.”

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By Peter Gutierrez

GNSS Positioning and Precise Timing

Francine Vannicola, Naval Research Laboratory

As 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.

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By Inside GNSS

LTE, Positioning, and the Implications for GNSS Over-the-Air Testing

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.

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By Inside GNSS
October 9, 2012

Galileo Satellites Readied for Friday Launch

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.

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By Inside GNSS
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September 3, 2012

Spoofs, Proofs & Jamming

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?

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By Inside GNSS
July 31, 2012

UAVs: Homeland Security Under Pressure to Take a Greater Role in GPS Anti-Spoofing

A congressional committee overseeing activities at the Department of Homeland Security (DHS) appears poised to push the agency into a more substantive role in overseeing the use of drones in the United States — a move that could force DHS to move more forcefully to protect GPS users from spoofing.

The Subcommittee on Oversight, Investigation and Management within the House Homeland Security Committee is looking to DHS to manage the civil use of unmanned aerial vehicles (UAVs) or drones.

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By Dee Ann Divis
July 16, 2012

UAVs Vulnerable to Civil GPS Spoofing

University of Texas–Austin drone

In June a research team from the University of Texas at Austin (UT-Austin) demonstrated for the first time that a civilian unmanned aerial vehicle (UAV) can be commandeered in mid-flight by a civil GPS spoofing attack. The result will likely factor into the Federal Aviation Administration’s (FAA’s) plans to draw up rules for integrating UAVs into U.S. airspace by 2015.

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By Inside GNSS
July 5, 2012

Drones to the Rescue!

August 1994, early morning. Spain’s Central Pyrenees Mountains still in darkness.

At the outset of an ascent to a 3,000-meter peak along the international border, one of the co-authors encounters a group of tourist hikers who have begun searching for a colleague who had left the camp the previous evening. In the pre-sunrise gloom, helicopters cannot yet operate.

A week later, the body of the hiker is found. The rescue efforts came, unfortunately, too late.

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By Inside GNSS
July 3, 2012

Mission Accomplished: ESA Turns Out the Lights on GIOVE-A

ESA expert inspecting GIOVE-A in clean room in Baikonur Space Center, Kazakhstan. ESA photo

With the first two Galileo in-orbit validation (IOV) spacecraft working well, the European Space Agency (ESA) has decided to end the mission of its pioneering GIOVE-A satellite that had long exceeded it original purpose and design life.

Meanwhile, with the next Galileo launch approaching, ESA has expanded its Radio Navigation Laboratory (RNL) to meet the testing needs of Europe’s GNSS program.

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By Inside GNSS
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