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Aerospace and Defense

October 31, 2012

European Space Solutions: A Different Kind of Galileo Public-Private Initiative

A combined conference and trade fair, European Space Solutions — scheduled for December 3–5 in Central Hall, Westminster Storey’s Gate, London, England — will bring businesses and the public sectors together with users and developers to explore how space technologies and applications, including satellite navigation, can make a difference in the lives and livelihoods of people across Europe.

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By Inside GNSS
October 15, 2012

GNSS Augmentations

Dr. Todd Walter, Stanford University

Contrary to a widely held public impression, the elimination of GPS Selective Availability in 2000 did not take care of the needs that many users have for enhanced GNSS capabilities.

Indeed, various “augmentations” have been developed to meet the requirements of some applications for better accuracy, availability, or integrity (the assurance of the quality of a signal) than are available from GNSS signals in space.

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By Inside GNSS
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September 3, 2012

GPS Civil Funding

The Federal Aviation Administration (FAA) has told those awaiting their slice of the GPS civil program budget that the funds are on the way.

The money, which is supposed to support that portion of the GPS program springing from the needs of civilian users, has been held up for months. In fact, as of late August — with less than 40 days left to go in the fiscal year — the money had not been transferred to either the military’s GPS Directorate or the National Coordination Office (NCO) for Space-Based Positioning, Navigation, and Timing (PNT).

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By Dee Ann Divis

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
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July 31, 2012

House, Defense Department Move to Bridge GPS Modernization Funding Gap

Photo by DAVID ILIFF. License: CC-BY-SA 3.0

Both Congress and the Pentagon are putting money on the table to bridge the gap created by delays in the development of the new GPS ground system.

As Inside GNSS first reported earlier this year the Next Generation Operational Control System, or OCX, is running roughly two years behind schedule. It had been expected to be delivered in 2015, however, General William L. Shelton, the commander of Air Force Space Command, said this spring that OCX would be delayed until 2016 or 2017.

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By Inside GNSS
July 2, 2012

House and Senate Slash Civil GPS Funding

[Updated July 2] Appropriators in both the U.S. House and Senate have slashed next year’s funding for support of the civil portion of the GPS program. Lawmakers halved the portion of the Federal Aviation Administration budget dedicated to supporting the civil signals as well as the ground network monitoring of those signals.

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By Inside GNSS
May 31, 2012

Air Force Awards Service Support Contract for GPS III SVs

The U.S. Air Force has awarded Lockheed Martin a $68 million contract to provide mission readiness, launch, early orbit checkout, and on-orbit operations engineering support for the first two GPS III space vehicles.

Under the contract, Lockheed Martin will provide technical support to the Air Force’s 2nd Space Operations Squadron (2SOPS) and monitor the health and performance of the first two GPS III satellites from launch through their 15-year operational design lives.

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By Inside GNSS
May 30, 2012

AF Space Commander: GPS III, OCX Delayed

Launch of the first GPS III satellite has slipped to 2015 and completion of the ground control system is now delayed by up to two years, according to the chief of the Air Force’s space operations

“We’ll be ready to launch the first GPS III in 2015, but it now appears the next generation GPS Operational Control System, or OCX, won’t be ready for about a year or two after that,” General William L. Shelton, commander of Air Force Space Command (AFSPC) told attendees at the 28th Annual National Space Symposium.

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By Inside GNSS
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