Abstract:In order to overcome the reliability problem of stabilized platform used for shipboard equipment, a kind of out of stabilized platform antenna servo system for the communication between ships and ship-borne UAV is put forward and designed. This antenna servo system,with automatic tracking and manual two kinds of working mode,is used for vessels of ship-borne UAV real-time tracking. This paper also expounds the system of electromechanical actuation mechanism,tracking algorithm,the design of system hardware circuit and servo motor control system. Experiments show that the servo system can real-time track of ship-borne UAV accurately,thus the effective communication between ships and UAV can be ensured.