Open Directory - Science: Earth Sciences: Geomatics: Global Positioning System
See also: This category in other languages: - Navigation, tracking and field data collection software for PalmOS handhelds. - Cartographic Software is for making moving maps on which GPS data from a serial port are plotted. Data are tracked remotely via CDPD modems and internet sites. - Suite of data services that brings together the new Earth science products to be produced by spaceborne Global Positioning System (GPS) receivers. It serves mainly as a database for GPS occultation observations. - Download information into a Visual Basic application or web page. Garmin, Magellan, Navman or any NMEA 0183 enabled GPS supported. UTM, SPCS, British National Grid, and most other national coordinate systems supported. [Windows and Pocket PC]. - GPS special pricing for Trimble GeoExplorer 3 and ProXR/XRS educator kits. GPS education and training courses. Tutorials to learn about the GPS system. GPS consulting and course development. - A collection of drawings made with GPS data logging devices. - Technical and consumer discussion on GPS 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. - Via ftp. - GPS education, news, hardware, software, and links. Digital mapping. - Free multiplatform software converts waypoints, tracks and routes from consumer GPS receivers and popular mapping programs, and allows the data to be manipulated. Handles many file formats. - C-language software package for GPS-based real-time positioning and orbit determination. Includes system overview, technical papers, and a live demo . - A tutorial on GPS technology and how it works. - Software for Windows XP or later that works with digital maps bought or scanned. Imports vectorial and DEM data and also can interface Google Maps and Google Earth. - 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. - Technical and academic papers on GPS technology with a special emphasis on its use in aviation and marine applications. - The history and story of how the Global Positioning System evolved from the development of the world's most accurate timepieces, atomic clocks, by physicists looking into the nature of time. Adapted from an article written by MIT scientist Daniel Kleppner. - Resource from the UK Government intended for GPS-equipped surveyors, and Geographic Information Systems (GIS) developers who work with Ordnance Survey (OS) mapping. Includes the Passive Station Database, Active Station RINEX Data, and Coordinate Converter services. - Downloadable free GPS maps for travel adventures, self-guided tours, and outdoor activities. Map data includes waypoints and routes for use with handheld GPS and car navigation systems. - GPS, DGPS, LORAN-C, OMEGA, navigation systems, GPS navigation, DGPS navigation. - Navigation-Wonder, a shareware GPS mapping navigation software including voice response system [Windows].
