From accuracy and efficiency, the technology of GPS drone mapping has been mature.One of the most valuable indicators is survey accuracy , the survey accuracy is directly affected by the application. From the traditional GPS positioning to RTK / PPK / PPP, the drone gps mapping survey is one of tech
Drone is widely used, with low cost, multitasking, good maneuverability, high efficiency, low radiation, widely used in various aspects of military and civil production. Since GPS has the characteristics of all-weather, high precision and automatic measurement, drones currently used for mapping are basically used to locate and navigate through GPS. The GPS single point positioning accuracy of the drone flight control is too bad. So RTK technology and PPK technologies are apllied on drone mapping, which both can reach cm accuracy.
Agisoft Metashape is a stand-alone software product that performs photogrammetric processing of digital images and generates 3D spatial data to be used in GIS applications, cultural heritage documentation, and visual effects production as well as for indirect measurements of objects of various scale