[FOSS-GPS] High accuracy positioning with low cost GPS devices:a FOSS project

[Eugenio Realini]

Hi Stefan,

could you give us more details on how to use doppler measurements to 
extrapolate carrier phase observations to the reference station 
time-tag? Up to now we never investigated this matter, but we agree with 
you that this would improve accuracy.

Eugenio


stefans wrote:
> Hello Eugenio,
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>
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> please take a look on Q/A7 in that FAQ:
> http://www.u-blox.de/customersupport/faq_antaris/Rinex.html
>
> You should "correct" the u-blox carrier phase by extrapolating the carrier
> phase to the top-of-second
> (timetag of your reference station data)  by using doppler, before computing
> roverpositions.
>
> This would significantly improve accuracy.
>
>
>
> Stefan
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>