[FOSS-GPS] RTKlib using GPS and GLONASS

[arwooldridge]

Hi,
Did you switch off integer ambiguity resolution for Glonass under 
"Options/Setting2" in RTKnavi?
Leave it enable for GPS
This is necesary when using GPS plus GLO otherwise a good fix is almost 
certainly not possible.
Regards
Anthony

On 01/09/2015 09:53, BREMAUD Jean-Charles wrote:
>
> Hi,
>
> I ‘m currently trying to use rtklib with GPS and GLONASS using L1 only 
> signal, and I never got a fix.
>
> Various tests were performed in :
>
> -post-processing mode (RTKPOST) in static and single, with various 
> types of receiver (Ublox M8 raw data , and from national French CORS 
> stations)
>
> -real-time (RTKNAVI) in static and single (Ublox M8 are used as raw 
> data sources)
>
> In GPS only all tests are OK, but when Glonass is activated no way to 
> have a fix.
>
> For each epoch, the returned error message is always : point pos error 
> (chi-square error nv=9 vv=882.4 cs=13.8)
>
> Using RTKMonitor in RTKNAVI, I can see that residuals are very high.
>
> Any ideas, or suggestions ?
>
> Thanks for your help.
>
> Jean-Charles
>
>
>
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