Global Positioning System Or GPS: Some Important Details
The Global Positioning System or GPS is a form of Global Navigation Satellite System (GNSS) that has been formulated by the Department of Defense in the United States and handled by the 50th Space Wing of the United States Air Force. The Global Positioning System is the sole comprehensively operational GNSS around the world. It can be applied independently and it is frequently utilized by civilians for navigation functions. A group of between 24 and 32 Medium Earth Orbit Satellites is applied by GPS that send out microwave signals that permit GPS receivers to ascertain their present position, the time and their speed. The formal name of this is NAVSTAR GPS. In spite of the fact that NAVSTAR is not a short form, some reverse acronyms have been formed for it.
As it became totally functional in 1993, the Global Positioning System has become an extensive navigational tool used all over the world and a helpful device for land surveying, map-making or cartography, scientific applications, commerce, as well as hobbies like geocaching. In addition, the precise time reference is implemented for various purposes such as the scientific research of earthquakes. GPS also is an essential and principal synchronization resource of mobile networks like the Qualcomm CDMA air interface implemented by several mobile phone service providers in a number of nations. There are two potential sources of interference for GPS: natural source and artificial source. The accuracy of GPS can be enhanced by augmentation, precise monitoring, timekeeping and modernization.
Segmentation of the GPS:
The present GPS is made up of three main segments and they are the following:
1) The Space Segment (SS) 2) The User Segment (US) 3) The Control Segment (CS)
Applications of GPS:
GPS is applied in the following domains:
1) Military applications:
* Target tracking
* Navigation
* Search and Rescue
* Projectile and missile guidance
* Exploration and Mapmaking
2) Civilian Applications
* Aircraft navigation systems
* Automobile navigation systems
* Ship and boat navigation systems
* Bicycles
* Spacecraft
* Equipment for the visually impaired
* Geographic Information Systems (GIS) and Mapping
* Surveying
* Archeology
* Geology and Geophysics
* Mobile satellite communications
* Precise time reference
* Location based and emergency services
* GPS tracking
* Location based games
* Skydiving
* Photographic Geocoding
* Social networking
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