应用天文研究组知识库

针对共光路高重频激光测距中存在主波与回波时刻重叠的现象，对旋转快门的特性进行了分析和研究，得出二者重叠的条件和旋转快门的计算机控制算法，并通过实际目标跟踪实验对其进行验证。结果表明，不加计算机控制时，重叠概率大于5．0％，有的甚至高于10％；加计算机控制后，重叠概率降低至0．5％以下，有效提高了共光路激光测距系统的测距效率。

Aiming at the phenomenon of transmitting and receiving epoch overlapping in common optical path high frequency satellite laser ranging, the characteristics of rotation shutter are analyzed and researched. The overlapping condition and computer control algorithm of rotation shutter are then obtained, which are tested by actual satellite orbit tracking experiments. As a result, the overlapping probability is greater than 5.0 % when the rotation shutter is not controlled by computer, while it is less than 0.5 % with computer control. This scheme can obviously improve the efficency of the co-optical path satellite laser ranging system.