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Timeline for GPS Working Principle [closed]

Current License: CC BY-SA 3.0

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Jun 5, 2013 at 14:48 history closed Emilio Pisanty
dmckee --- ex-moderator kitten
off topic
Jun 5, 2013 at 14:30 comment added Olin Lathrop The answer is C. The receiver measures the relative time between satellites, which is why it needs 4 instead of 3 to solve the simultaneous equations. It also knows where the satellites are. The orbits are fairly predictable, and the small perturbations are measured and also broadcast by the satelites in something called the "ephemeral" data. You can go even further and compare your received data to that received at a known nearby location. All these tricks are used in real units to various degrees.
Jun 5, 2013 at 14:18 review Close votes
Jun 5, 2013 at 14:53
Jun 5, 2013 at 9:58 answer added neutrino timeline score: 1
Jun 5, 2013 at 9:56 comment added neutrino The receiver knows from which satellites is receiving data, and the timestamp and identity of each of them , so it can infer the current position, knowing where each satellite is actually.
Jun 5, 2013 at 9:51 history edited Qmechanic CC BY-SA 3.0
It seems the homework tag applies even if it is not actual homework
Jun 5, 2013 at 9:48 review First posts
Jun 5, 2013 at 10:08
Jun 5, 2013 at 9:32 history asked user25431 CC BY-SA 3.0