Am Fr 6. Juni 2008 schrieb Flyin_bbb8: > just wanted to add, Differential GPS is mainly for aircraft GPS systems to > get better guidance on the ILS (Instrument Landing System). >
Aaaaha, I seen it being used for all sorts of archeology and buildings construction purposes. And from the info in the uBlox-paper, regarding the protocol options it doesn't seem to me like there is much chance for better precision by the way they do A-GPS. Better precision would mean info on meteorological interference (like exact amount clouds on the way to sat) at the very location of the receiver. To get this, you need... a reference receiver, so we are at D-GPS again. /j
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