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In order to tackle the problems existing in current actuator system for UAV guided missile such as not fast enough MCU as its core, PWM as its command and feedback signal, the obsolete 3-phase bridge driver, this paper studies an upgraded actuator controller and introduces a brand new design scheme. DSP and CPLD is selected as its core, the controller communicates with the flight mission computer via RS422 interface. After calculating the command signal, the controller drives the control surface to reach the expected position and then reports the feedback. The controller designed in this paper works better than the old version of actuator controller, and ground experimental tests show its advantages are low power consumption, great reliability and stability, high precision, and fast response. Later after successful flight tests, the controller can be equipped in UAV airborne short range air-to-ground guided missile.

Actuator Controller Design for UAV Airborne Short Range Air-to-ground Guided Missile Based on DSP and CPLD