I have been trying to dig into base station emplacement when no internet connection or known points are present in the field. I understand quite well what is described here:
Except for point 4) under the heading “Post Processed Kinematics”
After you get the coordinates you may enter them manually in Base coordinates section. Comparing PPK position to the averaged position and applying corrections to the collected data is the way to compensate the shift shown in the example on figure 2
So, I have been thinking about a typical situation I encounter in my work. I usually work in remote areas, no cell phone connection, no known points where to set the base. Usually I work in full PPK, i.e., taking raw data from both base and rover and then postprocess the base first (usally with NRCAN) and then use it to postprocess rover data, collected over 5-7 minutes for each point.
I wonder if, instead, this workflow may work:
- Set up the base and average single position for 20-30 (or more?) minutes.
- Set the base to collect RINEX data
- Note down the base position as averaged by the app
- Collect rover points via RTK (connecting the radio) waiting for fix.
- Once back to a place with connection, send the base data to NRCAN, and obtain precise positioning for the base.
- Calculate the XYZ offset between the NRCAN-processed base and the average single position
- Apply the same offset to all points in the survey (downloaded as csv)
Would this work, or there is something very obvious i am missing?