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How do GPS's work?

Updated: 8/16/2019
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13y ago

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GPS works like a distance measuring device using a laser.... the only difference is it uses time intervals. GPS consist of some components such as the satellite receiver , atomic clocks, power supply and etc.

Lets start from GPS satellite... in these satellites they have we so called the atomic clocks. These clocks gives time and being sent by the transmitter in the satellite in all direction and within this direction the GPS receiver we have onland or on seas can detect this and try to calculate at what time it received the signal. This calculation will give you the bearing(direction) and distance travelled by this signal, with 3 satellites it can give you the accurate position of your receiver by plotting these distances and directions(cross-bearings).

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