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| 转镜式高灵敏度干涉光谱成像仪ROSI的设计方法 | |
| 引用本文： | 袁艳,相里斌.转镜式高灵敏度干涉光谱成像仪ROSI的设计方法[J].光子学报,2007,36(2):279-281. |
| 作者姓名： | 袁艳 相里斌 |
| 作者单位： | 1. 北京航空航天大学,北京,100083 2. 中国科学院西安光学精密机械研究所,西安,710068 |
| 基金项目： | 国家高技术研究发展计划(863计划) |
| 摘 要： | 介绍了转镜式高灵敏度干涉光谱成像仪(ROSI)的设计计算方法,包括系统基本参量计算、光程差与干涉仪结构参量和转镜角度的关系以及转镜转速与探测器采样帧频的关系等,同时,分析了像点位移与探测器采样之间的失配问题,并给出了最小采样频率公式. |
| 关 键 词： | 傅里叶变换光谱成像仪 Sagnac干涉仪 转镜 采样失配 |
| 文章编号： | 1004-4213（2007）02-0279-3 |
| 收稿时间： | 2005-04-18 |
| 修稿时间： | 2005-04-15 |
Design Considerations of Rotary Interference Spectral Imager( ROSI) |
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| YUAN Yan,XIANG Li-Bin.Design Considerations of Rotary Interference Spectral Imager( ROSI)[J].Acta Photonica Sinica,2007,36(2):279-281. | |
| Authors: | YUAN Yan XIANG Li-Bin |
| Institution: | (1 Beihang University,Beijing 100083,China) (2 Xi′an Institute of Optics and Precision Mechanics of CAS,Xi′an 710068,China) |
| Abstract: | The Rotary Interference Spectral Imager(ROSI) is based on the Sagnac lateral shifted interferometer.The Optical Path Difference(OPD) is obtained by rotating one of the two mirrors of the Sagnac interferometer.It is an instrument with the merits of high sensitivity,high stability and staring imaging,etc.Some calculation aspects including the principle parameters of the system,the relation between the OPD and the structure parameters of the interferometer,the relation between the OPD and the rotary angle of the mirror,the rotating speed and sampling frequency of ROSI are presented.The mismatch problem between the rotating speed and detector sampling frequency is discussed and solved by oversampling method. |
| Keywords: | Fourier transform spectral imager Sagnac interferometer Rotating mirror Sampling error |
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