U.S. Presentations from ICG-4

September 14-18, 2009

The following presentations were delivered by the U.S. delegation during the 4th annual meeting of the International Committee on GNSS (ICG), held in St. Petersburg, Russia.

DOWNLOAD 5 MB	U.S. Space-Based PNT Programs & Policy Robert Hessin, National Coordination Office for Space-Based PNT David Buckman, U.S. Air Force Leo Eldredge, Federal Aviation Administration This combined plenary presentation includes three sections covering: U.S. space-based PNT policy implementation; GPS technical information and modernization plans; and U.S. augmentation systems.
DOWNLOAD 73 KB	System Information Exchange: The Importance of Transparent GPS Service Provision to Users Rick Hamilton, U.S. Coast Guard This plenary presentation describes the efforts of the Civil GPS Service Interface Committee (CGSIC) to disseminate information to GPS users.
DOWNLOAD 800 KB	Meeting Space User Requirements Through Evolving PNT Services Larry Young, NASA This plenary presentation discusses NASA's use of GNSS to meet its future needs.
DOWNLOAD 1.5 MB	Template for GNSS Service Performance Commitments Karl Kovach, contractor to U.S. Air Force This presentation to ICG Working Group A supports the adoption of a new ICG principle that states, "Every GNSS provider should establish documented civil performance commitments to inform users about minimum levels of service."
DOWNLOAD 240 KB	SVN-49 / PRN-01 Lessons Learned David Goldstein, U.S. Air Force This presentation to ICG Working Group A provides a case study in GNSS anomaly resolution.
DOWNLOAD 822 KB	Satellite-Based Augmentation Systems (SBAS) Combined Performance Ken Alexander, U.S. Department of Transportation, and Frederic Bastide, European Commission This briefing to ICG Working Group A describes cooperative work between the United States and Europe to estimate future availability of aviation services based on interoperable WAAS, EGNOS, and MSAS capabilities.
DOWNLOAD 1 MB	GPS Geodetic Reference System: WGS 84 Barbara Wiley, National Geospatial-Intelligence Agency This presentation to ICG Working Group D discusses the geodetic reference system used by GPS.
DOWNLOAD 300 KB	GPS Time and Its Steering to UTC(USNO) Ed Powers, U.S. Naval Observatory This presentation to ICG Working Group D discusses the time scale used by GPS.