>From my experience i guess you should achieve +-5cm. What is the average SNR you have at your setup? Did you give correct voltage to the antennas? Also have a look at the troposhere and ionosphere correction method you chose. I dont have the knowledge to tell you the best config for them. Good Luck
2013/6/6 <[email protected]> > > Hello, > > I’am trying to build a differential GPS using RTKLIB 2.4.2. > The accuracy that I can achieve is around +/-2 m. > Which is about the same that one of my sensor achieves in PPP kinematic > mode. > My expectation is to achieve something around +/- 5 cm. > The set up: > Sensors2 UBLOX NEO6P > AntennaTrimble Bullet III > The sensors are installed on the roof with a free 360 °view. RTKLIB > indicates that 6 to 8 Satellites are visible. The distance between both > sensors is < 20 cm. > > Ublox Center Configuration: > NEMA Child Messages Disabled > UBX Child Messages Enabled > RXM-RAW Enabled > RXM SFRB Enabled > RXM-RATE 200ms > Dynamik Mode Pedestrian > RTKLIB Configuration > Input Streams > Rover Serial COM 1, UBLOX > Base Serial COM 2, UBLOX > Log Streams > Rover to File > Base to File > Solution Log > Solution 1 toFile > Solution 2 to File > Options > Positions > Base Station Position is acquired by 10hour static measurement. > > So, with this setting I usually get FLOAT (90%) and intermediate FIX (10%) > soloutions with an accuracy of +/- 2m. > My expectation is to achieve something around +/- 5 cm. > Is my expectation wrong? > Have I selected the correct configuration? > When I run the sensors stand alone in PPP Kinematic mode I also get around > +/- 2m accuracy which matches the manufacturer provided data.So I assume > that my Antenna, Sensor are working fine. > Can somebody HELP ? > > > _______________________________________________ > This message is sent to you from [email protected] mailing list. > Visit http://lists.osgeo.org/mailman/listinfo/foss-gps to manage your > subscription > For more information, check http://wiki.osgeo.org/wiki/FOSS-GPS > >
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