What is the difference between RTK and GPS? About future high-precision positioning services!

What is the difference between RTK and GPS? About future high-precision positioning services!

It is said that the accuracy of location information services, which are used for automatic driving of car navigation systems and drones, and recently for improving the accuracy of 3D surveying at civil engineering sites, will continue to increase in the future. When it comes to location information, the first thing that comes to mind is…