For a certain type of airborne optical electronic load with frame-division step imaging, the system undergoes a sudden change in the given position value and slight shaking of the camera body when the motor starts and stops. The system takes so long that the steady-state setting time exceeds the time-sequence control requirements, which affects the image quality. This study proposes a control method called cascade dynamic hybrid amplitude limitation. On the basis of cascade control with primary and subsidiary loops, the system realizes the adaptation of the sudden jump in the given step angle value and reduces the influence of slight body shaking via dynamic programming of voltage limits and speed limits according to the photoperiodic starting signal and position-speed control signal. Finally, the system satisfies the time-sequence control requirements of an airborne optical electronic load. Experiments and dynamic imaging tests indicate that when cascade dynamic hybrid amplitude limitation control is adopted, the system realizes fast and steady-state performance of step position control during the imaging and back periods. The steady-state setting time of position control during the imaging and back periods is reduced by 26.56% and 18.47%, respectively. This method satisfies the time-sequence control requirements of an airborne optical electronic load and improved the rolling direction image motion compensation effect.
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