| 地平式跟踪系统过顶问题研究 |
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| 引用本文： | 王红宣,吉桐伯,王伟国,刘廷霞,李博. 地平式跟踪系统过顶问题研究[J]. 长春邮电学院学报, 2010, 0(4): 347-351 |
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| 作者姓名： | 王红宣 吉桐伯 王伟国 刘廷霞 李博 |
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| 作者单位： | 中国科学院长春光学精密机械与物理研究所,长春130033 |
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| 基金项目： | 国家自然科学基金资助项目（60902067） |
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| 摘 要： | 地平式光电系统过顶跟踪时需要很大的方位角速度,在目标通过天顶瞬间方位角速度达到无穷大,导致地平式系统在天顶附近存在跟踪盲区。为此,对天顶跟踪盲区进行了分析,提出盲区范围计算公式,并分析了天顶附近目标图像旋转问题。从软硬件两种角度提出过天顶跟踪目标的方法,即倾斜方位轴方法和程序引导方法,通过比较二者的优缺点给出具体应用范围。
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| 关 键 词： | 地平式跟踪架 光电系统 盲区 |
Solution to Overcome Zenith Blind Zone in Altitude-Azimuth Optoelectronic System |
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| WANG Hong-xuan,JI Tong-bo,WANG Wei-guo,LIU Ting-xia,LI Bo. Solution to Overcome Zenith Blind Zone in Altitude-Azimuth Optoelectronic System[J]. Journal of Changchun Post and Telecommunication Institute, 2010, 0(4): 347-351 |
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| Authors: | WANG Hong-xuan JI Tong-bo WANG Wei-guo LIU Ting-xia LI Bo |
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| Affiliation: | (Changchun Institute of Optics Fine Mechanics and Physics,Chinese Academy of Sciences,Changchun 130033,China) |
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| Abstract: | Tracking around the zenith requires a very rapid motion in azimuth,approaching infinity in the limit of a star passing exactly through the zenith.The result is a blind zone around the zenith for altitude-azimuth mounts.The zenith blind zone is mainly considered and some formulae are given for estimation of the dimensions of it.The effect of field rotation,which is another disadvantage for altitude-azimuth optoelectronic tracking system,is analyzed briefly.Two solutions to overcome the zenith blind zone are presented,which also leads to some directions for future investigation. |
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| Keywords: | altitude-azimuth mounts optoelectronic system blind zone |
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