positioning technology control by satalite

1. GPS
Global Positioning
System
Presented by-
SHAKIL
MUHAMMAD
UET PESHAWAR
PAKISTAN

2. GPS
Global Positioning System
The Global Positioning System (GPS)
is a space-based satellite navigation
system that provides location and time
information in all weather conditions,
anywhere on or near the Earth

3. Global Positioning System
History
Direct outcome of second world
war.
In early 1970’s an experiment was
proposed ,satellites can find the
position .This vision is called GPS.
Realized after 20 years.

4. Global Positioning System
Structure
There are three main parts of GPS
Space segment
Control segment
User segment

5. Space Segment
The GPS system currently has 31 active
satellites in orbits
The orbits are designed so that there are
always 6 satellites in view, from most places
on the earth.

7. Global Positioning System
Control segment
These are stations on the
Earth that send and receive data
by way of the satellite.

9. User Segment
This part consists of user receivers.
The GPS receivers detect, decode
and process signals from satellite.
Gives output in the form of map.

10. Mechanism
The GPS receiver gets a signal from each GPS
satellite
 The satellites transmit the exact time the
signals are sent
By subtracting the time the signal was
transmitted from the time it was received, the
GPS can tell how far it is from each satellite.

12. Features of GPS
It does not require internet connection for its
operation.
It uses radio waves.
It works in all weather conditions.

13. Applications
Aircrafts uses this system.
It gives position on Earth or near Earth.
It gives the map of desired place.

14. Applications
Track your luggage, laptops, and anything of
importance while traveling
 One can get to time sensitive destination
faster by finding shortcuts and correct
directions.
One can track stolen phone

19. Any Question?