Friday, January 22, 2010

Capillaries Chest Liver Disease

BEST COVERAGE IN BRIEF


The North-American authorities responsible for the control and management of Global Positioning System
treatment ( GPS), have decided to undertake a series of efforts to improve the coverage of it in conflict areas (Afghanistan and Iran), where the nature of the land (rugged terrain) often hinders the reception of satellite signals. The side effect of this decision is that military civilian users of the system is benefiting from the measures that have been launched and will culminate in a period of two years.

In recent months a series of new satellites have been located in the vicinity of the former satellites of the GPS constellation, in order to provide the necessary redundancy to ensure system stability. The number of satellites in orbit is, at present, the highest since the GPS started to be operational.

The plan has now launched the U.S. Air Force is dispersed along the orbits of these new satellites, so the number of mills visible * from any point on Earth's surface is greater than today, something that will improve the accuracy of our receivers and shorten the time needed to compute a position (TTFF or "Time To First Fix").

Although they had come to hear rumors about the demise of the GPS or that over time would be a payment system, it seems that is the opposite and it will get better over time. On the European alternative Galileo should be up and running since 2008 but the project has 3 years late and is not intended to be marketed until 2014 . In Europe we are cakes see what the countries participating in the project are what part of the pie. Anyway so we go ... When Galileo becomes operational, it will interoperate with GPS as the result of GPS + Galileo will give us increased accuracy for the end user due to the increased number of available satellites. Galileo is also expected to be better than GPS. You can read an interview astronaut Pedro Duque carried out in which he talks about it.

* It is worth remembering that the correct GPS operation requires that there be a direct liaison through smooth between each satellite and receiver. It is therefore often employ metaphors "Satellite view" (the receiver) or "satellite view" to refer to the conditions of use of GPS.

Source: U.S. Air Force
Source: Carlos Puch

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