|Global Positioning System
Global Positioning System satellite ephemerides ("orbits") information for the general public, from US NOAA. GPS precise orbits are derived using 24 hour data segments from the global GPS network. An informational summary file is provided to document the computation and to convey relevant information about the observed satellites, such as maneuvers or maintenance. Orbits generally are available 2 to 6 days after the observation.
SNAP is Australia's largest academic GPS research group specialising in high precision GPS technology and applications.
GPS Ground Station on Kwajalein Island, photographs of the island and site. Links to others GPS sites.
GPS Base Stations located in New Zealand, Australia, and New Guinea. Download GPS data files for $40-$70 per day.
GPS receiver comparisons.
Dual frequency GPS & GLONASS, as well as EGNOS, WAAS and MSAT based on an in-house single baseband processor.
Navigation-Wonder, a shareware GPS mapping navigation software including voice response system [Windows].
A free membership society to bring together the delegates, sponsors, and exhibitors for the Satellite Navigation Conference and to foster, develop, and assist the Global Positioning System disciplines.
C-language software package for GPS-based real-time positioning and orbit determination. Includes system overview, technical papers, and a live demo .