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USCG Navigation Center Alexandria, VA
Provides the latest GPS and DGPS outage information, navigation forums, almanacs and local notices to mariners.
http://www.navcen.uscg.gov/
GPS by Globespotter
GPS education, news, hardware, software, and links. Digital mapping.
http://globespotter.com/
Satellite Navigation and Positioning Group (SNAP)
SNAP is Australia's largest academic GPS research group specialising in high precision GPS technology and applications.
http://www.gmat.unsw.edu.au/snap/snap.htm
Australian Global Positioning Systems Society
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.
http://www.gps-society.org/
Hyperbolic Positioning Algorithm
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.
http://ralph.bucher.home.att.net/project.h...
Chartracer Software
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.
http://www.chartracer.com/
GPS Deformation Monitoring
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.
http://www.cage.curtin.edu.au/~geogrp/rese...
GPS Control Base Station on Internet
GPS Base Stations located in New Zealand, Australia, and New Guinea. Download GPS data files for $40-$70 per day.
http://www.gpscontrol.com/
GPS Kwajalein
GPS Ground Station on Kwajalein Island, photographs of the island and site. Links to others GPS sites.
http://www.angelfire.com/ab/gpskwaj/index....
GPS Discounts for Educators
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.
http://www.gps4educators.com/
Outdoor Gear Reviews
GPS receiver comparisons.
http://gearreview.com/navreviews.asp
Septentrio Satellite Navigation
Dual frequency GPS & GLONASS, as well as EGNOS, WAAS and MSAT based on an in-house single baseband processor.
http://www.septentrio.com/
Wing Way Systems
Navigation-Wonder, a shareware GPS mapping navigation software including voice response system [Windows].
http://www.vader-abraham.com/gpssoft.htm
The National GPS Network
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.
http://www.gps.gov.uk/
GPS Precise Orbits
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.
http://www.ngs.noaa.gov/GPS/GPS.html
Travel by GPS
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.
http://www.travelbygps.com/
RLA GeoSystems
Source for GPS information and training. Trimble ProXRS and GeoExplorer3 receivers, top 10 websites, GPS for educators and free help.
http://www.rlageosystems.com/
GPS Information
Mehaffey, Yeazel and DePriest's site provides dozens of reviews and technical articles on GPS receivers and software, and a huge list of links.
http://gpsinformation.net/
GPS Status Information from US Naval Observatory
Via ftp.
ftp://tycho.usno.navy.mil/pub/gps/
The Global Positioning System: The History of GPS
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.
http://www.beyonddiscovery.org/content/vie...
Internet-based Global Differential GPS
C-language software package for GPS-based real-time positioning and orbit determination. Includes system overview, technical papers, and a live demo .
http://gipsy.jpl.nasa.gov/igdg/index.html
Cetus GPS
Navigation, tracking and field data collection software for PalmOS handhelds.
http://www.CetusGPS.dk/
Wayhoo.com
Database of geographical waypoint information and utilities for GPS/GIS users.
http://wayhoo.com/
The GPS Waypoint Base
Non-commercial project allowing the collection or submission of GPS waypoints.
http://www.waypoints.de/
David L. Wilson's GPS Accuracy Web Page
Global Positioning System Accuracy
http://users.erols.com/dlwilson/gps.html
GPS ActiveX
Get GPS information into your 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]
http://franson.biz/gpstools/
GIS Services
Specializes in ArcView GIS training and provides commodities, services and training for implementing and integrating solutions with GIS, GPS, AVL, internet mapping and satellite imagery.
http://gisservices.net/
GPS Site from Univ of Texas
Global positioning system overview and bibliography.
http://www.colorado.edu/geography/gcraft/n...
GENESIS
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.
http://genesis.jpl.nasa.gov/
GPS Clocks for Computer Time Synchronization
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.
http://www.gpsclock.com/
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2006