Chapter: 12th Physics : UNIT 10b : Communication Systems
Global Positioning System
GLOBAL POSITIONING SYSTEM
GPS stands for Global Positioning
System. It is a global navigation
satellite system that offers geolocation and time information to a GPS receiver
anywhere on or near the Earth.
GPS system works with the assistance
of a satellite network. Each of these satellites broadcasts a precise signal
like an ordinary radio signal. These signals that convey the location data are received
by a low-cost aerial which is then translated by the GPS software. The software
is able to recognize the satellite, its location, and the time taken by the
signals to travel from each satellite.
The software then processes the data
it accepts from each satellite to estimate the location of the receiver.
Applications
Global positioning system is highly
useful many fields such as fleet vehicle management (for tracking cars, trucks
and buses), wildlife management (for counting of wild animals) and engineering
(for making tunnels, bridges etc).
Related Topics