<div dir="ltr">Mic, <div>Thank you for the advise. From this I understand my 6M module is not providing the raw data. I'll configure it to output the raw data and let you know the progress.<br><div class="gmail_extra"><br><div class="gmail_quote">On Mon, May 23, 2016 at 3:44 PM, <span dir="ltr"><<a href="mailto:foss-gps-request@lists.osgeo.org" target="_blank">foss-gps-request@lists.osgeo.org</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Send FOSS-GPS mailing list submissions to<br>
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Today's Topics:<br>
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1. (no subject) (Bipin Adaki)<br>
2. Re: (no subject) (Michele Bavaro)<br>
3. age of differential: rtkpost vs rtknavi (Michele Bavaro)<br>
4. Using SBAS for RTK with RTKLIB (Michele Bavaro)<br>
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<br>
----------------------------------------------------------------------<br>
<br>
Message: 1<br>
Date: Mon, 23 May 2016 10:38:39 +0530<br>
From: Bipin Adaki <<a href="mailto:bipin.adaki@gmail.com">bipin.adaki@gmail.com</a>><br>
To: <a href="mailto:foss-gps@lists.osgeo.org">foss-gps@lists.osgeo.org</a><br>
Subject: [FOSS-GPS] (no subject)<br>
Message-ID:<br>
<CAOk==yfUSsRnSEBTM4igPLxnhEZLnerKZ5w9VCst=Scbmo2u=<a href="mailto:Q@mail.gmail.com">Q@mail.gmail.com</a>><br>
Content-Type: text/plain; charset="utf-8"<br>
<br>
I am currently working on a asset tracking project, in which i need<br>
submeter level accuracy. for the same i am using the Ublox7P(Rover over<br>
serial port for testing) and 6M (Base station over serial port). When I<br>
start RTKNAVI with settings shown in the link, RTK is not able to display<br>
the satellite SNR for the 6M module, for same settings I am able to see the<br>
SNR for 7P module and the module is working fine with U-center. I tried<br>
replacing the rover and base station still for 6M it does not show the SNR.<br>
But in streams it shows data is coming continuously.<br>
<br>
<a href="https://docs.emlid.com/navio/RTKLIB/rtklib-rover-setup/" rel="noreferrer" target="_blank">https://docs.emlid.com/navio/RTKLIB/rtklib-rover-setup/</a><br>
<br>
Please help me.<br>
<br>
Regards<br>
Bipin Aadaki<br>
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Message: 2<br>
Date: Mon, 23 May 2016 08:33:28 +0000 (UTC)<br>
From: Michele Bavaro <<a href="mailto:mic.bavaro@yahoo.co.uk">mic.bavaro@yahoo.co.uk</a>><br>
To: Open Source GPS-related discussion and support<br>
<<a href="mailto:foss-gps@lists.osgeo.org">foss-gps@lists.osgeo.org</a>><br>
Subject: Re: [FOSS-GPS] (no subject)<br>
Message-ID:<br>
<<a href="mailto:1336071357.1397014.1463992408904.JavaMail.yahoo@mail.yahoo.com">1336071357.1397014.1463992408904.JavaMail.yahoo@mail.yahoo.com</a>><br>
Content-Type: text/plain; charset="utf-8"<br>
<br>
One good move would be to start using latest generation modules supported by uBlox, so that people don't have to suggest solutions based on hacks of previous models of ublox receivers.The 6M can be instructed to output RAW, just google a bit and you will find how, but better would be to actually focus on the "T" or "F" family.<br>
<br>
On Monday, 23 May 2016, 7:08, Bipin Adaki <<a href="mailto:bipin.adaki@gmail.com">bipin.adaki@gmail.com</a>> wrote:<br>
<br>
<br>
I am currently working on a asset tracking project, in which i need submeter level accuracy. for the same i am using the Ublox7P(Rover over serial port for testing) and 6M (Base station over serial port). When I start RTKNAVI with settings shown in the link, RTK is not able to display the satellite SNR for the 6M module, for same settings I am able to see the SNR for 7P module and the module is working fine with U-center. I tried replacing the rover and base station still for 6M it does not show the SNR. But in streams it shows data is coming continuously. <br>
<a href="https://docs.emlid.com/navio/RTKLIB/rtklib-rover-setup/" rel="noreferrer" target="_blank">https://docs.emlid.com/navio/RTKLIB/rtklib-rover-setup/</a><br>
<br>
Please help me. <br>
RegardsBipin Aadaki<br>
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Message: 3<br>
Date: Mon, 23 May 2016 09:08:32 +0000 (UTC)<br>
From: Michele Bavaro <<a href="mailto:mic.bavaro@yahoo.co.uk">mic.bavaro@yahoo.co.uk</a>><br>
To: Open Source GPS-related discussion and support<br>
<<a href="mailto:foss-gps@lists.osgeo.org">foss-gps@lists.osgeo.org</a>><br>
Subject: [FOSS-GPS] age of differential: rtkpost vs rtknavi<br>
Message-ID:<br>
<<a href="mailto:296994116.1472429.1463994512466.JavaMail.yahoo@mail.yahoo.com">296994116.1472429.1463994512466.JavaMail.yahoo@mail.yahoo.com</a>><br>
Content-Type: text/plain; charset="utf-8"<br>
<br>
I am using two M8Ts and doing GPS L1 kinematic.The base and rover binary streams come to rtkrcv via TCP client socket connection.Stream are also logged for post-processing.<br>
RTKLIB seems to handle age of differential well in post-processing (rnx2rtkp or rtkpost).However when a large gap (e.g. 20 minutes) of base observations happens as the base obs TCP client stream goes quiet, rtkrcv or rtknavi exhibit a large outlier when the obs actually come back. It takes a long time to get back on the correct position after such outlier.This seems to be related to some EKF parameters not being correctly re-initialised between a socket going idle and then live again after a relatively long time.Does anybody know where in the code this could be fixed? I am tracing it down but if someone already experienced the problem it would help me a lot.<br>
Bests,Michele<br>
<br>
<br>
On Monday, 23 May 2016, 7:08, Bipin Adaki <<a href="mailto:bipin.adaki@gmail.com">bipin.adaki@gmail.com</a>> wrote:<br>
<br>
<br>
I am currently working on a asset tracking project, in which i need submeter level accuracy. for the same i am using the Ublox7P(Rover over serial port for testing) and 6M (Base station over serial port). When I start RTKNAVI with settings shown in the link, RTK is not able to display the satellite SNR for the 6M module, for same settings I am able to see the SNR for 7P module and the module is working fine with U-center. I tried replacing the rover and base station still for 6M it does not show the SNR. But in streams it shows data is coming continuously. <br>
<a href="https://docs.emlid.com/navio/RTKLIB/rtklib-rover-setup/" rel="noreferrer" target="_blank">https://docs.emlid.com/navio/RTKLIB/rtklib-rover-setup/</a><br>
<br>
Please help me. <br>
RegardsBipin Aadaki<br>
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Message: 4<br>
Date: Mon, 23 May 2016 10:11:38 +0000 (UTC)<br>
From: Michele Bavaro <<a href="mailto:mic.bavaro@yahoo.co.uk">mic.bavaro@yahoo.co.uk</a>><br>
To: Open Source GPS-related discussion and support<br>
<<a href="mailto:foss-gps@lists.osgeo.org">foss-gps@lists.osgeo.org</a>><br>
Subject: [FOSS-GPS] Using SBAS for RTK with RTKLIB<br>
Message-ID:<br>
<<a href="mailto:691292514.1582459.1463998298747.JavaMail.yahoo@mail.yahoo.com">691292514.1582459.1463998298747.JavaMail.yahoo@mail.yahoo.com</a>><br>
Content-Type: text/plain; charset="utf-8"<br>
<br>
At the present time, in Europe SBAS messages of type 9 that we receive carry URA at 15 (do not use for ranging).Thus, RTKLIB discards all the ranges to SBAS.This is the correct behaviour for standalone positioning, but it should be possible to include those measurements into the differential AR engine as errors in orbits and clocks will cancel out in the double differences.When trying to force URA at 0 (2.4m error) and health at 0 (health OK) in the navigation message,RTKLIB does not generate coherent ranges between base and rover (even when they are in zero-baseline).Is this a clock bias problem or a time interpolation problem?<br>
<br>
<br>
On Monday, 23 May 2016, 7:08, Bipin Adaki <<a href="mailto:bipin.adaki@gmail.com">bipin.adaki@gmail.com</a>> wrote:<br>
<br>
<br>
I am currently working on a asset tracking project, in which i need submeter level accuracy. for the same i am using the Ublox7P(Rover over serial port for testing) and 6M (Base station over serial port). When I start RTKNAVI with settings shown in the link, RTK is not able to display the satellite SNR for the 6M module, for same settings I am able to see the SNR for 7P module and the module is working fine with U-center. I tried replacing the rover and base station still for 6M it does not show the SNR. But in streams it shows data is coming continuously. <br>
<a href="https://docs.emlid.com/navio/RTKLIB/rtklib-rover-setup/" rel="noreferrer" target="_blank">https://docs.emlid.com/navio/RTKLIB/rtklib-rover-setup/</a><br>
<br>
Please help me. <br>
RegardsBipin Aadaki<br>
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</blockquote></div><br></div></div></div>