利用光束后向散射提高激光跟踪发射精度方法.pdfVIP

第42 卷第8 期 红外与激光工程 2013 年8 月 Vol.42 No.8 Infrared and Laser Engineering Aug.2013 利用光束后向散射提高激光跟踪发射精度方法 薛向尧，高云国 ( 中国科学院长春光学精密机械与物理研究所，吉林 长春 130033) 摘 要 为提高激光跟踪发射系 激光发射指向精度，提 了一种通过测量发射激光后向散射光尖 来修正激光发射指向误差的方法。在介绍系 光机结构及后向散射相关理论的基础上详细论述了光 尖探测距离与视差的关系，根据天气情况和长期测量经验获得良好天气、中等天气和较差天气三种天 气状况下光尖探测距离，进一步得出三种天气状况下视差修正量。在良好天气状况下，利用预定空间 轨迹误差修正方式进行实验验证，对比光束后向散射法与靶板测量法所测得的激光发射指向精度，在 预定的空间轨迹上两者测量误差为2.5义，实验证明，利用光束后向散射法可以大大提高激光发射的指 向精度。 ； ； ； 关键词 激光指向精度 后向散射 光尖测量 误差修正 中图分类号 TH744.5 文献标志码 A 文章编号 1007-2276(2013)08-2003-05 Improvement method of laser pointing accuracy for the tracking and lasing system by backward scattering Xue Xiangyao, Gao Yunguo (Changchun Institute of Optic , Fine Mechanics and Physics , Chinese Academy of Sciences , Changchun 130033, China) Abstract: In order to correct laser beam pointing error for the high accuracy tracking and lasing system, a laser beam tip measurement method of laser backward scattering was developed . Firstly , the opto鄄 mechanical structure and the backward scattering theory were introduced, and the relationship between detect distance of laser beam tip and binocular parallax was analysed. Secondly , based on the long time observation, the detect distances of laser beam tip in good weather condition, medium weather condition and bad weather condition were obtained respectively . Finally , the validating experiment of laser beam tip measurement method by targeting method in predetermined orbit was carried out in good weather condition. The difference of two method