Gps Satellite

The first GPS satellite was launched in 1978, under the direct command of the US military forces. Since then, more then three dozens satellites have been launched on Earth’s orbit, servicing not only military and aviation forces but individual private users worldwide. In the history of the Global Positioning System, more than just one GPS satellite has been lost during launches or afterwards. Some satellites expired, others were replaced, but but no effort was spared for making GPS usage top quality. The decoding of the satellite signal is done by a GPS device or receiver that provides the exact geographical location according to three-dimensional coordinates.

Presently, almost any smartphone includes a form of GPS satellite navigation with different mapping support and applications. 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. For the moment, there are funding and management issues that impair 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.

At present there are some 31 satellites in service and since only four are necessary to get a fix on the position, the average user will not feel a change if some of the orbiting devices fail to work. 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 return to the use of maps all over again. The transportation systems, the maritime and military forces 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. Regardless of how things are managed in terms of administration, implementation and foreign policy at the global level, the average user will not be affected by the different modifications in the way the GPS satellite communication works. In fact, the number of GPS users will get higher because of people’s attempt to improve the efficiency of navigation.

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