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| 空间调制干涉型阿达玛变换光谱成像仪 | |
| 引用本文： | 周锦松,相里斌,魏儒义.空间调制干涉型阿达玛变换光谱成像仪[J].光谱学与光谱分析,2009,29(11):3163-3166. |
| 作者姓名： | 周锦松 相里斌 魏儒义 |
| 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,陕西,西安,710119;中国科学院研究生院,北京,100049 2. 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,陕西,西安,710119;中国科学院光电研究院,北京,100190 3. 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,陕西,西安,710119 |
| 基金项目： | 国家自然科学基金项目，国家重点基础研究发展计划项目 |
| 摘 要： | 简要叙述了色散型阿达玛变换光谱成像仪的原理及仪器构成,指出其存在空间信息与光谱信息的错位和光谱分辨率受阿达玛编码模板码元宽度制约的缺陷.提出空间调制干涉型阿达玛变换光谱成像技术原理及仪器,利用横向剪切干涉仪获得所有阿达玛编码光信息在不同光程差处的干涉信号,对干涉谱进行傅哩叶变换和阿达玛变换得到目标的光谱.理论分析表明,干涉图的调制度不受阿达玛模板形状、大小等因素的影响,光谱分辨率与阿达玛模板的尺寸无关,不但避免了色散型阿达玛变换光谱成像仪中空间信息和光谱信息的错位,而且高能量通过率、高空间分辨率和高光谱分辨率成像容易同时实现. |
| 关 键 词： | 阿达玛变换 空间调制 傅里叶变换 光谱成像仪 |
| 收稿时间： | 2008/11/16 |
Spatially Modulated Interference Hadamard Transform Spectral Imager |
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| ZHOU Jin-song,XIANGLI Bin,WEI Ru-yi. Laboratory of Spectral Imaging Technique,Xi''an Institute of Optics , Precision Mechanics,Chinese Academy of Sciences,Xi''an ,China. Graduate University of Chinese Academy of Sciences,Beijing ,China. Academy of Opto-Electronics,Beijing ,China.Spatially Modulated Interference Hadamard Transform Spectral Imager[J].Spectroscopy and Spectral Analysis,2009,29(11):3163-3166. | |
| Authors: | ZHOU Jin-song XIANGLI Bin WEI Ru-yi Laboratory of Spectral Imaging Technique Xi'an Institute of Optics Precision Mechanics Chinese Academy of Sciences Xi'an China Graduate University of Chinese Academy of Sciences Beijing China Academy of Opto-Electronics Beijing China |
| Institution: | ZHOU Jin-song1,2,XIANGLI Bin1,3,WEI Ru-yi11. Laboratory of Spectral Imaging Technique,Xi'an Institute of Optics and Precision Mechanics,Chinese Academy of Sciences,Xi'an 710119,China2. Graduate University of Chinese Academy of Sciences,Beijing 100049,China3. Academy of Opto-Electronics,Beijing 100190,China |
| Abstract: | The principle and instrumental structure of dispersion Hadamard transform spectral imager were briefly described in the present paper,and the disadvantages of the imager both in dislocation of spatial and spectral information and in spectral resolution limited by the width of Hadamard encoding mask were pointed out. A new instrumental principle and design of spatially modulated interference Hadamard transform spectral imager was proposed. A lateral shearing interferometer was used to acquire interference si... |
| Keywords: | Hadamard transform Spatial modulation Fourier transform Spectral imager |
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