Am Saturday 21 November 2009 20:32:11 schrieb J. Forster: > OK. Sme GPS receivers have magnetic sensors. What do they do with/about > magnetic deviation. > Just a wild guess: The GPS receiver also knows its location, and magnetic deviation is known to some degree in its variation over earth's surface. So, why not introduce a map of magnetic deviation that basically tells you: at location Lat; Long, your magnetic north points at 357 degrees instead of 360. Bingo, you're done. That would be especially useful in the pole region, where deviation becomes large, as the accuracy of magnetic sensors probably is in the order of a couple degrees.
Sounds reasonable, doesn't it? HTH, Florian _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
