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Global Positioning System
Directory > Science > Earth_Sciences > Geomatics > Global Positioning System
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  GPS Ground Station on Kwajalein Island, photographs of the island and site. Links to others GPS sites. |
GPS receiver comparisons. |
Learn about how to use GPS for computer time synchronization. We offer a GPSClock (for computer use) that's accurate to a millionth of a second. Ideal for running a stratum one NTP server. |
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. |
Global positioning system overview and bibliography. |
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. |
Objective is the development of a system for rapid and inexpensive monitoring of unstable slopes, such as pit walls, earth ock slopes and dam walls using global satellite positioning technology. |
Technical and academic papers on GPS technology with a special emphasis on its use in aviation and marine applications. |
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. |
GPS education, news, hardware, software, and links. Digital mapping. |
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]. |
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. |
Non-commercial project allowing the collection or submission of GPS waypoints. |
Mehaffey, Yeazel and DePriest's site provides dozens of reviews and technical articles on GPS receivers and software, and a huge list of links. |
SNAP is Australia's largest academic GPS research group specialising in high precision GPS technology and 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. |
Navigation-Wonder, a shareware GPS mapping navigation software including voice response system [Windows]. |
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. |
GPS, DGPS, LORAN-C, OMEGA, navigation systems, GPS navigation, DGPS navigation. |
Database of geographical waypoint information and utilities for GPS/GIS users. |
Dual frequency GPS and GLONASS, as well as EGNOS, WAAS and MSAT based on an in-house single baseband processor. |
Source for GPS information and training. Trimble ProXRS and GeoExplorer3 receivers, top 10 websites, GPS for educators and free help. |
Via ftp. |
A collection of drawings made with GPS data logging devices. |
Company based in Oregon, USA providing engineering and consulting services specializing in global navigation satellite systems (GNSS) technologies and other positioning, navigation and timing (PNT) systems. |
United State Geological Survey site provides extensive information on the use of GPS in education. |
Navigation, tracking and field data collection software for PalmOS handhelds. |
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. |
C-language software package for GPS-based real-time positioning and orbit determination. Includes system overview, technical papers, and a live demo . |
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. |
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