I am starting to study the RTK concept for GPS recievers. Apparently the high accuracy (centimeters) is achieved by using a different carrier wave than normal GPS and comparing this with a reference reciever in real time.
I have a slow moving rover with 0.1m/sec max speed which works in a limited open outside space and returns with given cycles to a base position for charging.
Here are the givens:
slow speed of movement of rover regular return to the same position for charging / syncing no need for absolute positions, only relative position to the base point (charging point)
Would it be possible to achieve good accuracy without the need of a second GPS reciever and cross communication? If the rover keeps track against the carrier wave all the time and makes small deltas in position, could it not work in isolation? In a manner, "surfing the wave" as it moves about, never taking so big steps that it loses position to another wave? It will also have the chance to re sync every time it is back in docking.
Many thanks for input from the GPS experts in the Arduino community