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Q__How a GPS works:?
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Answers
Explanation:
Here's how GPS works in six steps:
GPS works by using a method called "triangulation" or "trilateration".
❇It needs to get a message from at least three, preferably four satellites
❇To "triangulate", a GPS receiver measures the distance between itself and each satellite. It can measure distance because it works out exactly how long it took for each satellite's message to arrive. (distance = time of arrival * speed of light)
❇To measure travel time, GPS needs very accurate timing which it achieves with atomic clocks on board each satellite.
❇Along with distance, the device needs to know exactly where the satellites are in space at any given time. This information is held inside the GPS receiver itself.
❇Finally, because it knows exactly where the satellites are at that instant, by using some very clever mathematics, it can work out where it is on the ground.
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⏭️Hey Doraemon⏭️
⭕️✨The Global Positioning System (GPS) is made up of satellites, ground stations, and receivers. GPS is a system. ... The receiver figures out how far away they are from some of them. Once the receiver calculates its distance from four or more satellites, it knows exactly where you are.