第19卷
第3期
2011年3月
文章编号1004-924X(2011)03-0536-09
光学精密工程
Optics and Precision Engineering
水平式激光发射系统指向误差的修正
薛向尧1，2，高云国，韩光字，张文豹，于萍1
（1.中国科学院长春光学精密机械与物理研究所，吉林长春130033；
2.中国科学院研究生院，北京100039）
Vol.19No.3
Mar.2011
摘要：为修正由轴系误差引起的水平式激光发射系统的指向误差，借鉴经纬仪视轴指向误差的修正方法一一单项差法和坐标变换法，建立了激光发射系统指向误差的修正模型，得到了轴系误差在激光发射光路中的传递规律。介绍了系统光机结构及建模理论，导出了反射镜的作用矩阵。通过建立水平式跟踪架笛卡尔坐标系，将激光光束看作空间内一单位失量，并借助失量旋转与坐标变换，得到了各单项误差解析式；通过线性叠加得出激光发射系统指向误差的修正模型。结合电视跟踪系统所测量的激光束指向误差，采用最小二乘法拟合得出修正模型中各待定系数。实验结果表明：指向误差经修正后，系统在某两轨道上和天项区域的指向精度可达到3.1"和9，7，满足系统设计的精度要求。
调：激光发射系统；轴系误差；坐标变换；指向误差
关键
中图分类号：TH744.5
文献标识码：A
doi;10.3788/OPE.20111903.0536
Correctionof laserpointingerrorof level mounting laser transmitter system
XUE Xiang-yao'.2, GAO Yun-guo',HAN Guang-yu',ZHANG Wen-bao',YU Ping
(l.ChangchunInstitute of Optic,FineMechanics and Physics,ChineseAcademy of Sciences, Changchun 130033,China;2.GraduateUniuersity of ChineseAcademyof Sciences,Beijing100039,China)
Abstract: In order to correct the laser pointing errors caused by the axial errors for a level mounting laser transmitter system, a new laser pointing error correction model was built by using the correction method used in the pointing error correction of a photoelectric theodolite,and the error transfer behav ior between shafts and optical path was investigated intensively. Firstly, the opto-mechanical struc-ture and modeling theory were introduced, and the transformation matrixes of mirrors were presen-ted. Then, by constructing two 3D coordinates in which the laser beam was considered as a unit vec-tor, the laser pointing model was established by linear coordinate transformation and linear vector transformation. Furthermore,the undetermined coefficients in the laser pointing model were obtained by least square fitting. Finally, the TV tracking system whose optical axis was actually considered as an ideal one in the laser transmitter system was used to measure the laser pointing error. Experimen tal results indicate that the laser pointing precision of the level mounting laser transmitter system is up to 3. 1" and 9. 7" in 2 specific orbits and a zenith region, respectively, which satisfies the requirement
收稿日期：2010-04-06；修订日期：2010-05-27.
基金项目：中国科学院长春光学精密机械与物理研究所三期创新工程资助项目（No.061X20C060）