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The operating/operation of Global positioning machine is based at the ‘trilateration’ mathematical principle. The function is determined from the space measurements to satellites. From the figure, the four satellites are used to determine the position of the receiver on the earth. The target location is confirmed by using the 4th satellite tv for pc. And 3 satellites are used to hint the vicinity area. A fourth satellite is used to verify the goal region of every of those space vehicles. Global positioning system consists of satellite tv for pc, manipulate station and display station and receiver. The GPS receiver takes the facts from the satellite tv for pc and makes use of the technique of triangulation to determine a consumer’s precise funct
ion.

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