Hi

My coworker was collecting data by setting up on an unknown point as a base station. He completed the RTK survey and now want to process that data.

Any idea how he may post-process both the base and the rover data?

Thank you for your support. 

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Welcome to the community Savae!  I recategorized your post as a software related request so that you might get more targeted advise.  Also, you might like to edit your post to tell us what equipment you are using as it well.  Be sure to also check in the surveying videos for software tutorials.

Thank you for the welcome. Leica CS/GS15 were used as base and rover.

thank you

Did he locate any monumentation/property corners?

Hello. I think to post process you must do it with the leica geoffice.

Or read the bases again in the field from a known point and then recalculate the points.

Normally post process is used for points in static mode.

In RTK, download it´s made on a  ASCII format.

Well , that´s the way i do it.

You have a couple ways to do this. First, did you store session data at the base? If so you can upload it to the NOAA/OPUS site and get a very good position fix.
Savae,
If you are happy with its general location then the software should do the reduction for you. If the base was logging static data all the time that is,or was the base just transmitting corrections to the rover in which case you will have to use its initial position information and fix just the rover from the base

If it was not a large area survey, he may not have to be concerned with scale factor corrections that could happen with post processing software - depending on the level of accuracy required.  As far as rectifying your data to a site for mapping, you'll have to be able to correlate any 2 or more (more is better) of the points shot to point locations on the ground that are known.  If he shot points that you can easily find again and measure (physically measure with tape, gun or whatever), that will help.

Anonymous RTK should be pretty good at getting your bearings pretty accurate, but without monuments and/or known points to calibrate on, you're risking horizontal accuracy.

Did he save raw data for post processing, at least at the base?

Is the base an unknown point or a known point of unknown coordinates? (Is it monumented?)

A good solution may depend upon the answers.

JAC

It really doesn't matter how he located what as long as he did work up to the required specifications. What does matter is if it is properly processed and tied to control using proven geodetic principles & techniques. Obviously, good software will take much of the drudgery & labor out of processing a large number of points. On the other hand, if all you are doing is tieing a boundary survey to geodetic control for future retracement & documentation, all you need is good co-go. I have yet to meet a farmer or builder that gave a flip what his land measures on the grid. They want to plant or build something. You already know the value of tieing your work to a geodetic datum if you are a surveyor. I always tie all boundary work to a geodetic datum, usually an OPUS solution using a GNSS base. That is for the surveyor that may have to find the lines after the monuments are destroyed. It is unlikely the farmer will have a clue what a geoid is but I bet he wants to know where his line is located.

can send data in csv file and what process you need

I have done this survey many times.  I set up base in an ankown point, make the rtk surveying and then i process base coords in office (from an internet network in greece called Hepos, that gives me rinex data). I processed the base data, then i imported the controller's data and reprocess the rtk data in TBC

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