| 应用坐标变换动态修正光电经纬仪脱靶量 |
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| 引用本文： | 王芳,贾涛,张春林.应用坐标变换动态修正光电经纬仪脱靶量[J].光学精密工程,2009,17(12). |
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| 作者姓名： | 王芳 贾涛 张春林 |
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| 作者单位： | 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. 中国人民解放军63861部队,吉林,白城,137001 |
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| 基金项目： | 国家863高技术研究发展计划资助项目 |
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| 摘 要： | 分析了目前采用的脱靶量修正模型的适用条件,采用坐标变换法推导出经纬仪脱靶量修正公式,获得了与球面三角学相一致的推导结果,并在此基础上推导出成像系统无照准轴平行约束条件的通用脱靶量合成公式.采用光学系统的物方焦点作为摄像机系统的投影中心,推导出投影中心与经纬仪回转中心不重合条件下摄像机投影中心在测量坐标系中的坐标值.经测量设备的实际验证表明,该修正方法突破了现有修正模型的局限性,适用于多传感器经纬仪成像系统.对于水平不平行度为6.13°,物方焦点到固联中心的距离为0.247 m的成像系统,脱靶量合成修正误差＜16.0"(高低角为65°);投影中心位置误差＜0.04 m.
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| 关 键 词： | 光电经纬仪 脱靶量 修正模型 坐标变换 |
Dynamic correction of target deviations for photoelectric theodolites by coordinate transform |
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| WANG Fang,JIA Tao,ZHANG Chun-lin.Dynamic correction of target deviations for photoelectric theodolites by coordinate transform[J].Optics and Precision Engineering,2009,17(12). |
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| Authors: | WANG Fang JIA Tao ZHANG Chun-lin |
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| Affiliation: | WANG Fang1,JIA Tao2,ZHANG Chun-lin1(1.Changchun Institute of Optics,Fine Mechanics and Physics,Chinese Academy of Sciences,Changchun 130033,China,2.Unit 63863 of the PLA,Baicheng 137001,China) |
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| Abstract: | A correction formula for target deviations is derived by using the coordinate transform and its suitable conditions are proposed. Experiments show that it is coincident with the spherical trigonometry well.A new correction model for the target deviation is deduced when the optical axis is not parallel to the collimating axis, and the coordinates of the camera projection center in measuring coordinate systems are calculated in conditions of the mismatching between the optical center and the theodolite rotati... |
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| Keywords: | photoelectric theodolite target deviation correction model coordinate transform |
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