Build a positioning and Navigation system with +/- 10mm accuracy

Candidate should have experience in development of a positioning and navigation system with high accuracy (+ / - 10mm) using LORA or other RF devices which have a range of at least 5 km. you can use a small vehicle with DC wheels to operate and navigate the vehicle. The mapping can be done using existing toolsets using a 2d lidar sensor. once the map is generated, the target route should be set on the map and the vehicle would traverse this route with the said accuracy.