Global positioning system,GPS

GPS Global Positioning

System

Presented by-SHAKIL

MUHAMMADUET PESHAWARPAKISTAN

GPSGlobal 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

Global Positioning System

HistoryDirect 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.

Global Positioning System

Structure

There are three main parts of GPSSpace segment Control segmentUser segment

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.

Global Positioning System

Control segment

These are stations on the Earth that send and receive data by way of the satellite.

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.

Mechanism

The GPS receiver gets a signal from each GPS satellite

The satellites transmit the exact time the signals are sentBy subtracting the time the signal was transmitted from the time it was received, the GPS can tell how far it is from each satellite.

Features of GPS

It does not require internet connection for its operation.

It uses radio waves.

It works in all weather conditions.

Applications

Aircrafts uses this system.

It gives position on Earth or near Earth.

It gives the map of desired place.

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

Any Question?