Lakeda, a manufacturer of drone detection radars, points out that radar, as a critical electromagnetic sensor, detects target distance, speed, and方位 by transmitting and receiving electromagnetic waves. It is capable of operating in all weather conditions and resisting harsh environments. Since its application in World War II, radar technology has continued to evolve, with a wide range of frequency bands, and has been extensively used in military, socio-economic, and scientific research fields.