Aerospace and Defense Archives - Page 43 of 53 - Inside GNSS - Global Navigation Satellite Systems Engineering, Policy, and Design

Aerospace and Defense

The Fire Next Time
July 26, 2011

The Fire Next Time

What have we learned from the LightSquared fiasco?

Aside from the fact that someone gambling with other people’s money, with friends in high places benefiting from his largesse, can make the law stand on its head and our hair stand on end.

But then, we already knew that.

Just because the forces behind the broadband cellular company, Philip Falcone and Harbinger Investments, made their money by betting against the housing bubble doesn’t take away from the fact that they represent the same crew who helped take down the world economy in 2007.

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By Inside GNSS
Lockheed Martin Team Completes GPS IIIB System Design Review
July 5, 2011

Lockheed Martin Team Completes GPS IIIB System Design Review

GPS III satellite. Lockheed Martin illustration

Lockheed Martin has announced the successful, on-schedule completion of a system design review (SDR) for the second-phase of next-generation GPS satellite development, the IIIB increment.

The company’s Space Systems division in Newtown, Pennsylvania, is under contract to produce the first two of a planned eight GPS IIIA satellites, with first launch projected for 2014. The contract includes a Capability Insertion Program (CIP) designed to mature technologies and perform rigorous systems engineering for future GPS III increments.

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By Inside GNSS
Cars on the Road!
July 2, 2011

Cars on the Road!

FIGURE 1: System architecture

Cooperative vehicle safety applications should preferably have two-meter horizontal accuracy and six-meter vertical accuracy, all with a 95-percent availability. The solution must be developed to incorporate lower-cost sensor options, specifically, lower-cost inertial measurement units that can be generally characterized by the gyro drift of 100 degrees per hour and an accelerometer bias force of twice its mass times gravity (two milligals).

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By Inside GNSS
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Air Traffic Control Modernization: FAA, NextGen, GNSS, and Avionics Equipage

Air Traffic Control Modernization: FAA, NextGen, GNSS, and Avionics Equipage

Mike Dyment, General Partner, NextGen Equipage Fund LLC

» Air Traffic Control Modernization (PDF)

In between partisan confrontations around the 2011 federal budget and raising the U.S. debt limit, prospects are improving for federal legislation that would provide the Federal Aviation Administration (FAA) with a regular full-year budget for the first time since Fiscal Year 2007 — including support for completing the transition to a GNSS-driven air traffic control (ATC) system known as NextGen and a “public-private partnership” to equip aircraft with the needed avionics.

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By Inside GNSS
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FY11 Budget Battle Over, GPS Looks Ahead to FY12
April 28, 2011

FY11 Budget Battle Over, GPS Looks Ahead to FY12

Resolution of the between Congressional Republicans and Democrats that threatened a shutdown of the federal government has clarified the picture for military GPS programs in the coming year, although prospects for the civil side remain uncertain.

On April 15, 2011, President Obama signed the Department of Defense and Full-Year Continuing Appropriations Act, 2011 (H.R. 1473, Public Law 112-10), the last in a series of government-wide funding measures for Fiscal Year 2011 (FY11).

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By Inside GNSS
Keeping the Spoofs Out
April 18, 2011

Keeping the Spoofs Out

The demand for techniques capable of authenticating the GNSS signals and detecting simulation attacks (spoofing) has increased exponentially in the last years, mainly targeted to financial and safety critical applications.

Associated proposals and developments addressing these issues focused on two different approaches: user segment authentication services that leveraged existing services in order to detect signal spoofing and that integrated signal authentication services into the GNSS system itself.

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By Inside GNSS
Modernization Times

Modernization Times

Enterprise Baseline Schedule

Col. Bernie Gruber, commander of the GPS Directorate since June 2010, works in a busy place.

Through its various incarnations since being established in 1974 — as Joint Program Office, Air Force Wing, and now Directorate — the GPS program at the Space and Missile Systems Center (SMC), Los Angeles Air Force Base, California, has been at the center of the action.

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By Inside GNSS
Lockheed's GPS III Team completes Key Flight Software Milestone
March 15, 2011

Lockheed’s GPS III Team completes Key Flight Software Milestone

GPS III satellite. Lockheed Martin illustration

Lockheed Martin announced today (March 15, 2011) that the team it leads in developing the U.S. Air Force’s next-generation GPS III satellites has successfully completed the program’s first major flight-software integration milestone at the company’s software integration laboratory in Newtown, Pennsylvania.

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By Inside GNSS
Lockheed Martin to Test GPS III in Virtual World
January 25, 2011

Lockheed Martin to Test GPS III in Virtual World

Collaborative Human Immersive Laboratory (CHIL) illustration (Lockheed Martin)

GPS III contractor Lockheed Martin has integrated several virtual reality technologies in a new Collaborative Human Immersive Laboratory (CHIL) in Littleton, Colorado, which will be used to validate and test next-generation GPS and other space programs.

With CHIL, Engineers and technicians can explore satellite designs and functions, troubleshoot and fine-tune them in a virtual world before building them in physical space.

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By Inside GNSS
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