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Global Positioning System

shyma Amj

on 25 January 2013

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Transcript of GPS

Global Positioning System
(GPS) Atheer Alsoghier 209007432
Shaima Aljaafari 209019814 Global Positioning System (GPS) is a space-based satellite navigation system that provides location and time information in all weather, anywhere on or near the Earth. GPS was created and realized by the U.S. Department of Defense and was originally run with 24 satellites. It became fully operational in 1994. * GPS receivers calculate the position of objects in two dimensional or three dimensional space using a mathematical process called : "Trilateration" References: http://en.wikipedia.org/wiki/Global_Positioning_System
http://www.esri.com/what-is-gis/overview#publications_panel Thank you .. Mobile Computing.. Some Applications of GPS: Military uses
Scientific uses
Surveying and Mapping Some Problems with GPS Space It deals with GPS satellites systems, that transmit special radio signals which are picked up by GPS receivers and used for navigation and positioning. Control It controls the operations of all satellites, uploaded data to satellites, and monitor all signals broadcast by the satellites. User It is GPS receiver and its application, includes all military and civilian users. GPS Segments Accuracy: Civilian GPS units are often not particularly accurate.
Latency: GPS units also take a few moments to triangulate their position.
Privacy Issues: It can easily allow anyone to stalk you from a far.
Overdependence. The distance between a GPS satellite and a GPS receiver can be determined by:
distance = speed x time. A geographic information system (GIS) integrates hardware, software, and data for capturing, managing, analyzing data related to positions on the Earth's surface.

A GIS helps you answer questions and solve problems by looking at your data in a way that is quickly understood and easily shared. GPS for GIS:
In agricultural industries: GIS and GPS provide information to farmers about how to grow the crops best suited to a given patch of soil.
In marine industries: they help create images of the ocean floor and maps of the underwater world. GIS is used
to describe what is at the location,
it describes
an objects in
terms of a multi-layered database. - GIS/GPS integration can be categorized into the following three categories:

Data-focused integration
Position-focused integration
Technology-focused integration GPS in Mapping: Mapping is the art and science of using GPS to locate items, then create maps and models of everything in the world.
Mountains, rivers, forests and other landforms.
Roads, routes, and city streets.
Damage and disasters, trash and archeological treasures.

GPS is mapping the world.
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