| 阿达玛变换光谱成像仪光谱混叠分析及修正 |
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| 引用本文： | 周锦松,吕群波,相里斌.阿达玛变换光谱成像仪光谱混叠分析及修正[J].光子学报,2005,34(10):1518-1521. |
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| 作者姓名： | 周锦松 吕群波 相里斌 |
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| 作者单位： | [1]中国科学院西安光学精密机械研究所光谱成像技术实验室,西安710068 [2]中国科学院研究生院,北京100039 |
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| 摘 要： | 叙述了阿达玛变换光谱成像仪的原理及仪器构成，对阿达玛编码模板引起的光谱混叠现象进行了分析研究.从理论上导出了光谱混叠公式，并提出了光谱修正方法，仿真实验结果表明该方法简单有效.修正后光谱图像的分辨率取决于偏离光轴最远处的码元对应的空间分量.
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| 关 键 词： | 光谱成像 阿达玛变换 光谱混叠 编码模板 |
| 收稿时间： | 2004-08-27 |
| 修稿时间： | 2004年8月27日 |
Analysis and Revision on Spectra Aliasing of Hadamard Transform Spectral Imager |
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| Zhou Jinsong, Lti Qunbo, Xiangli Bin,.Analysis and Revision on Spectra Aliasing of Hadamard Transform Spectral Imager[J].Acta Photonica Sinica,2005,34(10):1518-1521. |
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| Authors: | Zhou Jinsong Lti Qunbo Xiangli Bin |
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| Institution: | (1 Laboratory of Spectral Imaging Technique, Xi′an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi′an 710068)
(2 Graduate School of Chinese Academy of Sciences, Beijing 100039) |
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| Abstract: | The principle and instrument structure of Hadamard transform spectral imager is described, and spectra aliasing caused by Hadamard encoding mask is investigated. Spectra aliasing formula is obtained in theory and the method of spectra revision is proposed. Simulation results show that this method is simple and effective. The resolution of spectral images revised depends on space component corresponding to the code which is deviated from optic axis most. |
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| Keywords: | Spectral imaging~ Hadamard transform~ Spectra aliasing~ Encoding mask |
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