PPK results with Phantom 4 Pro v.2
Very interested but worried that the dji care refresh is invalidated with this augmentation.
Lee, what kind of results do you get with zero GCPs?
The results I posted is virtually zero GCP's. The drone creates the initial point, which is used for a single GCP calibration.
Just like any use of static GPS, it is very important to place your Base in an area with wide open sky. At my office, there are a lot of large White Pine trees over 80ft tall. I launched a test mission with the base getting just 5 US and 4 Glonass SV's. The PPK post-processing produced all float positions. Rendering the data useless. But fortunately I had three GCP's, the launch point, and two painted cross's on pavement. Along with the BASE as a check point. This salvaged the entire project. Proving it is important to have at least three GCP's on all projects.
Thanks Lee. I’m trying to evaluate what kind of results to expect in areas where placing targets is difficult or unsafe for various reasons.
I find that we always need to leave a few control points for a survey baseline. These points don't need to be around the perimeter, just have them a few hundred feet apart. I like to paint a cross on the highway, leaving a PK nail in the center.