[FOSS-GPS] RTKlib using GPS and GLONASS

[Dimitris Psychas]

Dear Jean-Charles,

have you installed the latest patch of RTKLIB ? If not, then this may be the problem with your GPS+GLO observation data.

Regards,
Dimitris

From: Jean-Charles.BREMAUD at sercel.com
To: foss-gps at lists.osgeo.org
Date: Tue, 1 Sep 2015 08:53:27 +0000
Subject: [FOSS-GPS] RTKlib using GPS and GLONASS









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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