Good day all
I am not a surveyor but I play with GPS and specifically precision low cost units for precise positioning and navigation over dangerous terrain or for placement and remote control of machinery.
The question that I have is how is the baseline between the Base and Rover established (calculated)when RTK is in progress? Is it the horizontal distance or is it the hypotenuse?
In the above I have a Base at point A that is 10 meters away from the Rover at point B and it is also 10 meters higher. The receivers are precisely placed as indicated above.
What distance is calculated by the GPS as the Baseline?
Thank you
Sincerely
Anton
Replies
The vector that is developed between the two receivers is 3-D, ergo, an hypotenuse.
However, the report in the controller is based on the user's prescription or other (default?) settings and so the vector displayed MAY be horizontal, i.e., 2-D.
The dimensions may also depend on whether the unit is set up to display results using a plane projection, in which case the distances and directions will be somewhat different than the geodetic values.
What would you like me to expand on?
I am in the process of building an height (Z) adjustable rig to see when this "transformation" takes place
Tell us more...