 | | GPS
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| OK. This is probably a bit off-topic ... but I am sure you will find this interesting ... I recently rented a car from Hertz with the NeverLost system - GPS Receiver, Street Maps and Business/Tourist directory built into one. Apart from the fact (...) (24 years ago, 4-Jan-01, to lugnet.robotics)
| | | | | Re: GPS
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| (...) The reason you are getting better resolution is the US Government turned off selective availability (the random noise inserted into the timebase, then encrypted so military applications can use it). They reserve the right to turn it back on in (...) (24 years ago, 4-Jan-01, to lugnet.robotics)
| | | | | RE: GPS
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| GPS requires a clear, unobstructed view of the satellites in the sky. Forget about using it indoors. Earthquake researches use sensors that can detect movements of less than an inch. I don't know how they work, but it involves GPS to some extent. (...) (24 years ago, 4-Jan-01, to lugnet.robotics)
| | | | | Re: GPS
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| (...) Since some month the accuracy is about 12 -15 meters. (When I'm right, then there was an error added before to lower accuracy) (...) You get a better resolution if the signal of the aother satellites is better (a higher level) The (...) (24 years ago, 4-Jan-01, to lugnet.robotics)
| | | | | Re: GPS
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| Vihung, Now that selective availability is off I routinely get 12-18 feet accuracy from my GPS. And, yes, the more satellites you've acquired and the more spread between those satellites the better your accuracy. Also notice that your relative (...) (24 years ago, 4-Jan-01, to lugnet.robotics)
| | | | | Re: GPS
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| (...) As a footnote: Notably, when SA is turned on, both GPS units must use the same satellites for this to work. (24 years ago, 4-Jan-01, to lugnet.robotics)
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