Aerospace and Defense

Spoofs, Proofs & Jamming

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
House, Defense Department Move to Bridge GPS Modernization Funding Gap
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
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House and Senate Slash Civil GPS Funding
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
Air Force Awards Service Support Contract for GPS III SVs
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
AF Space Commander: GPS III, OCX Delayed
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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First GPS III Launch Delayed by Up to a Year, OCX by Two Years
May 19, 2012

First GPS III Launch Delayed by Up to a Year, OCX by Two Years

The 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 told attendees at the 28th Annual National Space Symposium.

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By Inside GNSS
Parts Testing Drives Up GPS III Program Costs, Forces Prime to Forego $70 Million Incentive Fee
April 21, 2012

Parts Testing Drives Up GPS III Program Costs, Forces Prime to Forego $70 Million Incentive Fee

The core structure of the GPS III Non-Flight Satellite Testbed (GNST) stands vertical in Lockheed Martin’s GPS III Processing Facility. LM photo.

An emphasis on quality assurance in system engineering and components in the first GPS III satellite now under development has driven projected costs up in the program above the budgeted amount, leading the U.S. Air Force to deny a $70 million incentive fee to prime contractor Lockheed Martin.

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By Inside GNSS
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