How the GPS Satellites Keep Our Position
The US military forces launched the first GPS satellite in 1978. More than thirty other satellites have been launched ever since for military, aviation and individual usage worldwide. In the history of the Global Positioning System, more than just one GPS satellite has been lost during launches or afterwards. Some orbiting devices expired, others were replaced, but but no effort was spared for making GPS usage top quality. A GPS receiver decodes the signal sent by the satellite and gives the exact location based on latitude, longitude and altitude.
Science has made such progress that GPS satellite navigation is now incorporated in the design of smartphones. People depend more and more on GPS orientation and problems may appear if replacements do not come for the orbiting satellites that will expire in a few years. At present, there are funding and management issues that seem to act against the proper reconditioning of the GPS applications. The US Air Force maintains the entire GPS satellite structure, the economic difficulties put a lot of stress on the managers who lack funds to invest in reconditioning.
The average user will hardly notice if any of the 31 orbiting satellites will fail, because normally, four satellites at time on the sky are enough to provide adequate information. There is a certain redundancy in the way information is provided, because sometimes, six up to eight satellites can get connected to a GPS receiver for the same tasks. But in the eventuality of no real time positioning with the GPS satellite structures, we’d have to start using maps all over again. The military, maritime and transportation systems would be the most affected if the satellites are not reconditioned.
The European states are preparing the launch of an independent satellite navigation system in 2010 that would be an alternative to the American GPS satellite applications that are now most popular. There are other countries that have individual satellite navigation and here we can count India, China or Russia. No matter how things are sorted out in terms of policy, implementation and administration at the global level, the average user will not be affected by the different modifications in the way the GPS satellite communication works. More and more people will in fact start using GPS devices for increased efficiency of navigation.
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When the author isn’t being tracked, she has a collection of interests in psychic readings, Seattle HCG diet, and BMW Z4 windscreen windblocker wind deflector.
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