GPS Control Segment Upgrade Details
Jun 1, 2008
By:
Jack Taylor, Major James J. Pace Jr., Philip J. Mendicki, Arthur J. Dorsey
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The phased transition of the 22-year-old Legacy GPS Master Control Station (MCS) to the Architecture Evolution Plan (AEP) control segment, which became operational in September 2007, constituted a multi-year cooperative effort to achieve a seamless navigation service transition to GPS users.
Modeling and Simulation for Navigation System Testing
Sep 1, 2006
By:
Curtis Hay, Colin Ford, Greg Gerten
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Modeling and simulation, two separate but related activities conducted prior to flight tests of high-performance military navigation systems, can reduce costs, shorten timelines, and remove some uncontrollable variables from the process, to deliver more accurate, verifiable results.
A solid-state GPS navigation system enables widespread use of GPS in smaller manned and unmanned aircraft, achieving the accuracy and robustness typically associated with larger, higher cost systems. The NAV420's sensors, data-acquisition elements, and Kalman-filter-based algorithm allow smaller aircraft to be deployed more easily for a variety of missions — at less than one-tenth the size and cost of most tactical and navigation-grade inertial systems.
Jul 1, 2006
By:
Darren S. Liccardo, Jose Rios
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A solid-state GPS navigation system enables widespread use of GPS in smaller manned and unmanned aircraft, achieving the accuracy and robustness typically associated with larger, higher cost systems. The NAV420's sensors, data-acquisition elements, and Kalman-filter-based algorithm allow smaller aircraft to be deployed more easily for a variety of missions — at less than one-tenth the size and cost of most tactical and navigation-grade inertial systems.
Jan 1, 2006
By:
Lisa McAdam
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A recent simulated test of military UAVs demonstrated one more envisioned GPS role in military operations. As part of the J-UCAS program, Northrop Grumman performed a test of simulated, simultaneous control of four X-47B UAVs on September 28, 2005, at the Naval Air Warfare Center Weapons Division in China Lake, California.
GPS Dropsondes Trace Katrina's Course
Oct 1, 2005
By:
Marty Whitford
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GPS dropsondes released into the Katrina's eyewall tracked and predicted wind strength, speed, and direction.
The GPS Joint Program Office (JPO) has launched an initiative to shift all work on Modern User Equipment (MUE) to a single contractor, citing budget constraints.
Lightweight Collision-Avoidance System
Aug 2, 2005
By:
Alan Cameron
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Quick — how many life-saving decisions can you make in 18 seconds?
