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

Eugenio Realini eugenio.realini at gmail.com
Sat May 23 12:50:13 EDT 2009

Hello Takasu,

I've played around a bit with RTKLIB: it's really good!

In the past days I've let RTKNAVI run for many hours connected to the
AEK-4T and our permanent station (NTRIP connection - RTCM msgs
1002,1006,1019) without any problem.

I've also post-processed the RINEX files of some of our tests and
everything works well. I've tried RTKCONV to create RINEX from the
u-blox stream logs saved by goGPS and it works too (no wonder since
goGPS saves the raw stream on file as it is, but it was worth a try!).

I'm definitely going to test RTKLIB thoroughly in the next days and
I'll try to compare its results with goGPS ones.

The only minor problem I've found out is that while I was trying to
navigate around in "Single" mode, the map Y-axis kept "switching sign"
at every second. In other words, the trajectory plot was continuously
"flipping" in the vertical direction. This didn't happen with other

RTKLIB is a very good software package, thank you for having released
it as opensource!


2009/5/17 ttakasu <ttaka at yk.rim.or.jp>:
> Hello,
> I have just released RTKLIB ver.2.2.1 supporting RTCM 2.3 or 3.0/3.1.
> RTKNAVI can work with NRTK (Network RTK) via NTRIP.
> http://gpspp.sakura.ne.jp/rtklib/rtklib.htm
> The English manual is now in preparation. It will be published later.
> Please wait for a while.
> T.Takasu
> http://gpspp.sakura.ne.jp/indexe.html
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