[OSM-talk] All radio begins with the antenna

[SteveC]

* @ 29/09/06 12:55:31 PM nickblack1 at gmail.com wrote:
> Ionospheric interference also contributes to these kind of regular
> errors that you see in GPS data.  It would be cool to do a similar
> comparison with EGNOS enabled and EGNOS disabled on two receivers and
> see what the resulting errors looked like.  In theory EGNOS should
> compensate for a lot of the Ionospheric error, altough as this type of
> error varies quite slowly you would have to test over a week or so.

Right, as you can see from my graphs the error in lat/lon is correlated
and small. The error in height is uncorellated with the other too and
bigger. So what I was guessing is that this was more fundamental, mainly
because it wasn't correlated.

have fun,

SteveC steve at asklater.com http://www.asklater.com/steve/