NAVSTAR : GLOBAL POSITIONING SYSTEM (GPS)

NAVSTAR Global Positioning System Surveying

Global Positioning System (GPS) Bias Correction and

Seasonal variation in habitat selection by the mountain goat Oreamnos americanus is not well understood due to the difficulties of monitoring animal movement in all months of the year. The use of global positioning system (GPS) wildlife telemetry collars offers an opportunity to overcome this obstacle, however satellite acquisition problems associated with GPS wildlife telemetry collars create ...

How is it made? Global Positioning System (GPS)

Recently, after a family trip, a friend of mine decided to go back to use his old paper map in his travels and to put his GPS receiver to rest for ever. This came after a series of deceptions by this little device with the annoying automated voice and the 4" screen and the constantly lost signal, his words notmine. The latest of these deceptions was a trip from Ottawa to Niagara Falls which too...

Global Positioning System: The Mathematics of GPS Receivers

We will see that receivers use very simple mathematics, but that they use it in highly ingenious ways. Being able to locate our position on the surface of the earth has always been important for commercial, scientific, and military reasons. The development of navigational methods has provided many mathematical challenges, which have been met and overcome by some of the best mathematicians of al...

Automated Vehicle Location (AVL) Using Global Positioning System (GPS)

—Generally vehicular networks are considered to contain two types of nodes; vehicles and roadside stations. Vehicular communications is usually developed as a part of Intelligent Transport Systems (ITS) that seeks to achieve safety and productivity through intelligent transportation which integrates communication between mobile and fixed nodes. The majority of today's automated vehicle location...