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为了实现对光束目标位置的高精度控制，可以采用二级控制方法──粗定位与精定位。这种控制策略在红外仿真装置中得到了应用。
In order to achieve high-precision control of the beam’s target position, a two-stage control method, coarse positioning and fine positioning, can be used. This control strategy has been used in infrared simulation devices.