精跟踪伺服系统是自由空间激光通信中的一项关键技术。
The system servo of fine tracking plays a key role in space laser communication.
提出了采用等效目标等几种评价和检验电视跟踪伺服系统精度的方法。
The equivalent target method and some other methods to evaluate and test the tracking precision of O-E theodolite TV tracking system are brought forward.
因此提高光电经纬仪跟踪快速运动目标的能力，一直是光电跟踪伺服系统努力的方向。
So improving the tracking ability of a theodolite for the fast moving target is the orientation of the photoelectrical tracking and servo system all along.
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