Determining UAV Coordinates from Ground Transmitting Stations

Navigation for UAVs to follow a trajectory requires determining their coordinates. Common methods include using GPS or INS or both. However, these systems have certain drawbacks, and a supplementary method is always necessary to ensure system reliability in all cases. This paper develops a positioning method based on time synchronization from broadcasting points with given coordinates to determine UAV coordinates, builds a specific algorithm to determine UAV coordinates from three ground signal transmitting stations, and provides an illustrative example, thereby demonstrating the effectiveness of the proposed method.