Official U.S. government information about the
Global Positioning System (GPS) and related topics
U.S. Presentations from the Inaugural Meeting of the International Committee on GNSS
December 1-2, 2005
The following presentations were delivered by the U.S. delegation to the International Committee on GNSS (ICG) in Vienna Austria.
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U.S. International Efforts to Promote Compatibility and Interoperability with the Global Positioning System (69 KB)
Ken Hodgkins, Department of State
Describes U.S. goals for international cooperation and specific initiatives with Europe, Russia, Japan, and other nations.
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Global Positioning System: A Policy and Modernization Review (785 KB)
Michael Shaw, National Space-Based PNT Coordination Office
Provides an overview of the U.S. Space-Based PNT Policy, its implementation, status of the GPS constellation, and the GPS modernization program.
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Global Navigation Satellite Systems (GNSS) for Aviation (1.8 MB)
Ken Alexander, Federal Aviation Administration
Describes U.S. and international aviation uses of GPS, the Wide Area Augmentation System (WAAS), and the Local Area Augmentation System (LAAS), as well as the overall shift to Performance-Based Navigation.
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Nationwide Differential Global Positioning System (5.2 MB)
Len Allen, Federal Railroad Administration
Describes the NDGPS program, its applications in the United States, and the effort to develop High Accuracy NDGPS as an international standard.
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GPS Information Service Modernization (1.3 MB)
Hank Skalski, Department of Transportation
Describes efforts to refocus the operations center for the GPS constellation to become more user-oriented.
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NASA GPS Applications for Scientific Investigations (1.3 MB)
Ruth Neilan, NASA Jet Propulsion Laboratory
Describes space applications of GPS, the International GNSS Service, and potential extention of GPS to outer space.
