Vehicle Tracking Project Links
A thorough tutorial from GPS technology firm Trimble
GPS equipment suppliers TopCon Positioning Systems have a tutorial (online and downloadable pdf formats) which discusses more technicalities of GPS, including sources of errors and ways of compensating for them.
The Aerospace Corporation has a GPS students' guide, also in downloadable pdf format.
US Air Force fact sheet with technical information about the GPS satellites.
The Ordnance Survey National GPS Network is a resource for GPS users, particularly in surveying. There are several case studies showing how developments in GPS availability and accuracy have helped a range of users.
The Guardian's obituary of Ivor Getting, the inventor of GPS.
The International Engineering Consortium has a technical tutorial on Global System for Mobile Communications (GSM). Downloadable pdf format (registration required for this).
There is useful information on the GSM industry at GSM World
An accessible guide to satellites from the Tech Museum of Innovation
A good review of the basics of satellite communications from JISC. Covers different types of satellites and their applications.
Some less conventional uses for GPS
The sport of Geocaching. Interactive treasure hunting by GPS and the web.
The Degree Confluence Project uses GPS receivers to verify visits to confluences (meeting points) of lines of latitude and longitude.
Educational activities related to the Degree Confluence Project.
Tracking sea turtles by radio telemetry.
GPS Drawing These drawings are made by travelling a route while carrying a hand-held or vehicle mounted GPS reciever. The route is plotted on to a screen, producing the picture.