The Best Way to Have GPS Navigator

Global Positioning System is a really popular navigation system that is used by a great amount of people nowadays. The aim of the arrangement is the detecting of the velocity and situation of the objects. It may detect the object at any area on Earth, even in polar areas and in outer space to one hundred kilometers above Earth in any weather conditions. The United States Department of Defense has worked out and realized NAVSTAR GPS.

The main principle of work is definition of the position by the means of measuring the distance to an object from the point with definite coordinates. The distance is detected by the calculating the delay time of the signal spreading from the satellite-transmitter to a GPS antenna which is a receiver. You may see that GPS receiver has to know the distance to 3 satellites and the time of the GPS system to identify 3-dimensional coordinates. And when we need to detect coordinates and altitude of GPS receiver we have to apply minimum 4 radio signals from 4 satellites. Schriever base, Colorado is the direction station that realizes the orbital force supervision from Earth.

A great amount of civil persons as well as the police, sailors and rescuers apply GPS systems for different purposes, mostly for navigation, position and speed definition. GPS systems are being sold in different stores and they are built in mobile phones, PCs and onboarders. GPS receiver allows a consumer to define geographical coordinates of the receiver's location at the present moment. The exactness of the detection of the signal location is from 3 to 5 meters and it is really heightened with the correction signal from Earth and the calculating mistake is 1 millimeter.

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Add commentJune 20th, 2008