The first is radar detection, The radar system uses radio waves to scan and detect the surrounding airspace, and obtains parameters such as position, speed and altitude by detecting the signals emitted by the UAV. This method can quickly and accurately detect the presence of drones and provide real-time monitoring and tracking.

After the location of the drone is detected, it is also very important to launch effective countermeasures against the drone. A common civilian drone countermeasure is radio interference. By using radio jamming devices to disrupt the drone's communication signals, it loses contact with the operator, thereby forcing the drone to land or return to the take-off point.