| TDI CCD电荷转移对遥感相机成像质量的影响 |
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| 引用本文： | 王德江,董斌,李文明,金灿强. TDI CCD电荷转移对遥感相机成像质量的影响[J]. 光学精密工程, 2011, 19(10): 2500-2506. DOI: 10.3788/OPE.20111910.2500 |
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| 作者姓名： | 王德江 董斌 李文明 金灿强 |
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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中国科学院航空光学成像与测量重点实验室,吉林长春130033;中国科学院长春光学精密工程与物理研究所,吉林长春130033;中国科学院研究生院,北京100039
2. 中国科学院长春光学精密工程与物理研究所,吉林长春,130033 |
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| 基金项目： | 国家863高技术研究发展计划资助项目(No.2006AA06A208); 国家重点基础研究发展规划项目(No.2009CB72400102A) |
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| 摘 要： | 由于多相位TDI CCD行间电荷转移引起的像移无法通过光、机、电等方法消除,本文研究了电荷转移对遥感相机成像质量的影响.首先,介绍了推扫式遥感相机的工作原理与前向像移补偿方法.接着根据TDI CCD行间电荷的转移方式,利用脉冲传递函数建立了电荷转移速度模型,并对TDI CCD电荷转移速度与景物像点移动速度进行了比较分析...
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| 关 键 词： | 时间延迟电荷耦合器件 遥感成像系统 电荷转移 调制传递函数 |
Influence of TDI CCD charge transfer on imaging quality in remote sensing system |
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| WANG De-jiang,DONG Bin,LI Wen-ming,JIN Can-qiang. Influence of TDI CCD charge transfer on imaging quality in remote sensing system[J]. Optics and Precision Engineering, 2011, 19(10): 2500-2506. DOI: 10.3788/OPE.20111910.2500 |
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| Authors: | WANG De-jiang DONG Bin LI Wen-ming JIN Can-qiang |
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| Affiliation: | WANG De-jiang1,2,3,DONG Bin2,LI Wen-ming2,JIN Can-qiang2(1.Key Laboratory of Airborne Optical Imaging and Measurement,Changchun Institute of Optics,Fine Mechanics and Physics,Chinese Academy of Sciences,Changchun 130033,China,2.Changchun Institute of Optics,Chinese Academy of Science,3.Graduate University of Chinese Academy of Sciences,Beijing 100084,China) |
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| Abstract: | The smear caused by a charge transfer for multi-phase TDI CCD in a remote sensing system couldn't be eliminated by the motion compensation methods.First,the operation principle and forward motion compensation method are introduced.Then,according to the charge transfer mode of a TDI CCD,the velocity model of charge transfer in one line period is developed by employing an impulse function,velocities of image point and TDI CCD are analyzed,and why the charge transfer causes the smear is also presented.Furtherm... |
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| Keywords: | TDI CCD remote sensing imaing system charge transfer modulation transfer function |
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