(The Gist of Science Reporter) GPS  [MARCH-2018]

(The Gist of Science Reporter) GPS



It is hard to imagine any smartphone without a GPS service. Global Positioning System in mobile phones is used to figure out where you are. The system navigates by means of a map with help from GPS satellites. GPS receivers in phones are passive devices and determine the position using data from at least three GPS satellites and the receiver through trilateration. The data is transmitted via radio signals. Trilateration uses the distance between the satellites and the receiver to create overlapping “spheres” that intersect in a circle. The intersection is your location on the ground.

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Courtesy: Science Reporter