UAV Antenna Automatic Tracking System Based on Arduino

To address the problems of short data link signal distance, poor pointing accuracy, and the real-time performance of ordinary directional antennas during the flight of small and medium-sized unmanned aerial vehicles (UAVs), an Arduino-based UAV antenna automatic tracking system is proposed in this study. An ATMEG328P main controller is used to control the overall system, GPS is employed to obtain the real-time position of a UAV, a coordinate system with the center of the earth as the origin is established to calculate the relative position of the aircraft and the ground, and virtual GPS frame data are generated via NMEAGNE for the tracking simulation. Moreover, a radio is utilized to collect and test the POS data. The experimental results show that the data link is stable, and the range-increasing effect is obvious when the system is tracking. The optimization program achieves high-precision tracking for aerial targets within 0.5 m and keeps the image signal clear up to 10 km through 100 MW data transmission. Moreover, the data link signal can be maintained above 90%.