L2 GPS missing/Header error - Post processing ReachRS2 + pospac Lidar

Ya, sorry about that. Kind of finding a needle in the famous haystack

I made the test with the b31…still fail :frowning:

According to this document, they used RTKlib 2.4.2 with pospac

Sad thing, you will only get L1 out of it but this might lead you to a bug they can fix for current RTKlib

I tried this to see if rtklib was the reason of the bug, but I don’t know if it can prove something.

it is the ā€œcompute RTX coordinateā€ who failed in pospac. This process calculates the exact coordinates of the base station and defines the right epoch, frame, projection etc… but for the rest of the process like the trajectory correction it looks, it’s working. So actually I can bypass the problem by calculating the base station coordinate with rtkpost if I have another observation file available…

but of course, it is not the best solution and I prefer to use the tools that I paid for it.

Do you have those files or point me to it? If I could have a look at it
The Raw RS2 file and converted public file from the gnss network

yes sure,

the public gnss converted file is here https://drive.google.com/drive/folders/12BQ7-yUXgPXqfsVKWM_9dJRAjRrJuwDB?usp=sharing

and my raw files are here (Emlid reach RS2 folder) : https://drive.google.com/drive/folders/1dqCkee5WwqNRhYhCDwfYTo8qV3Eo0PFe?usp=sharing

The public converted file folder was empty. Could you repost the file?

Ho ya that’s true the file was not in the good level, its good now

What happens if you run this with pospac?
11110090_RINEX.zip (2.4 MB)

sorry for the delay i was outside the office.

Thanks for your file…but it failed too :frowning:

Ok. I am out of ideas. Those processing tools are picky sometimes

ya me too, it is why i am waiting some answer from pospac dev team.

Btw, what you did in the file ?

I changed the format name from Ublox to RINEX. Yea, better wait for pospac to return an answer.

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So, do I understand that Applanix did tell you that the antenna model number has to be entered in the RINEX file?

In that case I don’t think there’s a solution to the problem as there is nothing that you could enter that would work. As far as I know, Emlid aren’t officially listed anywhere yet that the software could reference from.

Yes, it was the hypothesis from Applanix because they don’t understand why the process didn’t work, but I told them that I already tried to fill with random info and also with original info that I took from another base, and it changed nothing. So Applanix transferred the ticket to the dev team to understand where the problem is. I am waiting for the answer.

I think the software require absolutely L2P or L1P record to works…so I believe they will need to maybe create an exception for emlid or maybe publish a warning that the antenna is not compatible with the software…otherwise they will get more and more ticket with the same issue.

Hi Arnaud,

It’d be great if you could share the answer from the software dev team with us.

At the moment, it’s not clear why post-processing fails. Our RINEX files are standard and can be processed by various external software. It’d seem that the issue is indeed due to the specific requirements of your software.

Would it be possible for you to upload a RINEX version of this file? It’d help us to find out the types of observations included in it and check if post-processing with the RTKLib can be performed.

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Hi @polina.buriak

Yes with pleasure, I will share the answer. For the moment I am still waiting for the message from the support, as I said to them about my test with the header, they are investigating another way. I will let you know as soon as I have more information.

This is the rinex version of my drone trajectory (T04 converted with pospac Trimble solution): https://drive.google.com/drive/folders/1twwKnfqyYz5N7prP2BjyCoqZW5uoaSe7?usp=sharing

Btw, at the end of the process, pospac generates an ASCII file, which is the corrected trajectory that I import in my software to generate my point cloud accurately. If you can do that…it’s mean I waste a lot of money in this software :sweat_smile: But anyway, I believe it is not possible as the file must contain information from the inertial unit, like degree of inclinaison in XYZ etc… this is the file in question : https://drive.google.com/drive/folders/1QDNj8XT5og2OV4i5fd37Gr3Bc6znXXrM?usp=sharing

Hi Arnaud,

Thanks for the logs! I’ll look into them and get back with the results.

Regarding the corrected trajectory file, I’m afraid getting IMU data from the Reach receivers is indeed not implemented into the software at the moment.

I think he meant the lidar sensor’s integrated IMU as his linked file contains that data.

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Yes Gabriel, you are right it is the IMU from the Lidar that I was speaking. :wink:

Btw, i tried with the new firmware 2.22 and the problem still here