We just purchased two Reach RS+ units to collect highly precise Ground Control Points (GCPs) for our ultra high resolution UAV maps. We will be working in the Great Lakes coastal wetlands where wifi and a known point (benchmark) will not be available. Also, the plots we will be flying this summer will have thick vegetation (trees and cattails), which might possibly affect our LoRa radio signals.
From my understanding, without NTRIP (Wifi) or a known point on site, the base station will have to be set to average single and will have to be post processed in RTK LIB to achieve a corrected solution for an absolute point on earth.
That being said my first questions is seeing if I even need a base unit in the field…should we be using just a rover instead of a rover and base? Because we don’t have a known point or network. wouldn’t having a base in the field be useless? Instead we would turn on the rover and start logging at every GCP for about 5 minutes then take a point in the survey tab then turn off the log and move to the next GCP location and repeat… in the lab we would select a CORS station (within 100km away) as our base and post process the data. Is this correct?
If the above scenario doesn’t work, how do you correct the base station? I’ve read many docs and listened to what people have said online but I cannot figure out how to post process the base in RTK Lib. If LoRa’s radio signals are able to travel through the thick vegetation and I can receive RTK to my rover… the GCP points I would take down in the survey tab would be accurate but to my inaccurate base station. How would I go about post processing my base so that my rover points are corrected as well? Is there an output position file that shows pre-processed and point processed coordinates for my base station and survey points taken by the rover?
Any information will help,