Earth Sciences: Geomatics: Global Positioning System: Page 2

Objective is the development of a system for rapid and inexpensive monitoring of unstable slopes, such as pit walls, earth\rock slopes and dam walls using global satellite positioning technology.

Mehaffey, Yeazel and DePriest's site provides dozens of reviews and technical articles on GPS receivers and software, and a huge list of links.

GPS Ground Station on Kwajalein Island, photographs of the island and site. Links to others GPS sites.

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.

Global positioning system overview and bibliography.

An algorithm for obtaining an exact solution for the three dimensional location of a mobile given the locations of four fixed stations (like a GPS satellite or a base station in a cell) and the signal time of arrival (TOA) from the mobile to each station. From Ralph Bucher.

C-language software package for GPS-based real-time positioning and orbit determination. Includes system overview, technical papers, and a live demo .

GPS receiver comparisons.

Source for GPS information and training. Trimble ProXRS and GeoExplorer3 receivers, top 10 websites, GPS for educators and free help.

SNAP is Australia's largest academic GPS research group specialising in high precision GPS technology and applications.