| 空间相机偏流角的间歇式实时调整 |
| |
| 引用本文： | 于涛,徐抒岩,韩诚山,李杨,王永成. 空间相机偏流角的间歇式实时调整[J]. 光学精密工程, 2009, 17(8) |
| |
| 作者姓名： | 于涛 徐抒岩 韩诚山 李杨 王永成 |
| |
| 作者单位： | 中国科学院,长春光学精密机械与物理研究所,吉林,长春,130033;中国科学院,长春光学精密机械与物理研究所,吉林,长春,130033;中国科学院,研究生院,北京,100039 |
| |
| 基金项目： | 国家自然科学基金资助项目 |
| |
| 摘 要： | 空间相机摄像时对其偏流角进行实时调整,可以减小偏流角姿态变化对成像质量的影响,延长一次性连续摄像时间并使用较多的TDI积分级数进行摄像.本文对偏流角实时调整的需求进行了详细分析并给出了实时调整策略;然后,介绍了偏流角调整系统的构成及实时调整的工作原理;最后,提出了一种间歇式实时调整方案并进行了实验.实验结果表明:摄像过程中偏流角偏差值可以调整在4.2′以内,调整后误差≤72.17″,一次调整时间＜1 s,偏流角调整过程中图像的调制传递函数(MTF)值为99.67%.提出的间歇式实时调整方法可满足摄像过程中对偏流角实时且长时间调整,且对图像无本质影响的要求.
|
| 关 键 词： | 空间相机 偏流角 实时调整 像移补偿 调制传递函数(MTF) |
Batch-type real-time adjustment for drift angle of space camera |
| |
| YU Tao,XU Shu-yan,HAN Cheng-shan,LI Yang,WANG Yong-cheng. Batch-type real-time adjustment for drift angle of space camera[J]. Optics and Precision Engineering, 2009, 17(8) |
| |
| Authors: | YU Tao XU Shu-yan HAN Cheng-shan LI Yang WANG Yong-cheng |
| |
| Affiliation: | YU Tao1,XU Shu-yan1,HAN Cheng-shan1,LI-Yang1,2,WANG Yong-cheng1,2(1.Changchun Institute of Optics,Fine Mechanics and Physics,Chinese Academy of Sciences,Changchun 130033,China,2.Graduate University of Chinese Academy of Sciences,Beijing 100039,China) |
| |
| Abstract: | Adjusting the drift angles of a space camera on real time in photographing could decrease the influence of the attitude change on image quality and could prolong continuous photographic time with more TDI integral progressions. In this paper,the requirements adjusting drift angles on real-time were analyzed in detail and the real-time adjusting tactics were presented. Then,the structure of a drift angle adjusting system and the operating principle of real-time adjusting were introduced. Finally,a batch-type... |
| |
| Keywords: | space camera drift angle real-time control image motion compensation Modulation Transfer Function(MTF) |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
