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GPS

PRESENTEDBY:

MOHD ALAM

aligarh muslimuniversity MBASTUDENT.

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INTRODUCTION OF GPS

GPS is a navigation and precise-positioning tool.

Orbiting navigational satellites.

Transmit position and time data.

Developed by DoD in 1973.

GPS uses for location,navigation,tracking,

Mapping and timing.

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The GPS Constellation

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HOW GPS WORKS?

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GPS SEGMENTS

GPS systems are made up of 3 segments

Space Segment (SS)

Control Segment (CS)

User Segment (US)

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1 - Space Segment

- contains 30 GPS satellites

- orbiting at an altitude of approximately20,200 kilometers

- each satellite makes two complete orbits in12 hours( twice a day)

- orbits are designed so that at the veryleast, six satellites are always within line ofsight from any location on the planet

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Continues… 

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2 - Control Segment

The CS consists of 3 entities:Master Control Station- located Falcon Air Force Base in Colorado , is

responsible for overall management of the remote

monitoring and transmission .Monitor Stations- Six monitor stations are located world wide.- They checks the exact altitude, position, speed,

and overall health of the orbiting satellites.Ground Antennas-they transmit correction information to individual

satellites.

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3 - User Segment

-The user's GPS receiver is the usersegment of the GPS system

-They can also include a display for showinglocation and speed information to the user.

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GPS Communication and Control

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  What is happening?

GPS satellite circle the earth twice a day in a veryprecise orbit and transmit signal information toearth.GPS receivers take this information and usetriangulation to calculate the user’s exact location.

Essentially , the GPS receivers compares thetime a signal was transmitted by satellite with thetime it was received. The time difference tell theGPS receiver how far away the satellite is. Now

with distance measurement from a few moresatellites, the receiver can determine the user’sposition and display it on the unit’s electronic map. 

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APPLICATIONS

OF

GPS

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TRANSPORTATION

IT USES AIR,WATER ,SURFACETRANSPORTATION.

TO FIND ROUTES.

IT ENABLES FIND EASY ROUTES.

TO FIND EXACT LOCATION

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VEHICLES

TO TRACKING

FIND ROUTE

FIND LOCATION

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MILITARY

IN THE TIME OF WAR

TO ATTACK ENEMIES

TO FIND BOARDERS

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AGRICULTURE

SPRAYING PESTICIDE

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TOURISM

TO FIND LOCATION

FOR TREKKING

FOR MOUNTAIN BIKERS

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WILDLIFE

TO FIND WILDLIFE AND FOREST AREA

TO COUNTING WILD ANIMALS

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OTHER USES

SURVEYING

MAPPING

IDENTIFY NATIONAL BOARDERS

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CONCLUSION

The technology of the Global PositioningSystem is allowing for huge changes in society.The applications using GPS are constantly

growing. The cost of the receivers is droppingwhile at the same time the accuracy of thesystem is improving. This affects everyone withthings such as faster Internet speed and safer

plane landings.Even though the system wasoriginally developed for military purposes and itis used to support a broad range of defense.

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