Influence analysis of satellite drift angle on spectrum recovery precision of large aperture static interferometer spectrometer | |
Li, Siyuan1,2,3; Liu, Huan1; Zhang, Geng1; Zhang, Zhoufeng1,2,3; Zhao, Qiang1 | |
2017 | |
会议名称 | 2nd International Conference on Photonics and Optical Engineering |
会议录名称 | Second International Conference on Photonics and Optical Engineering |
卷号 | 10256 |
会议日期 | 2016-10-14 |
会议地点 | Xi'an, China |
出版者 | SPIE |
产权排序 | 1 |
摘要 | Large aperture static interferometer spectrometer (LASIS) use the method of push-boom to get the geometric and spectral characteristics of ground target, the particularity of principle requires the movement of satellite must be in the same direction with spectrometers detectors. Drift angle of satellite leading to abnormal image shifts in the column direction which should be perpendicular to the detector and can seriously affect the spectrum recovery precision of collected data. This paper analyzes the influence mechanism of drift angle for spectrum recovery precision. Simulation based on the actual on-orbit data analyses the effects of different drift angle of relative mean deviation and relative secondary deviation rehabilitation of the spectrum, besides the influence of spectral angle similarity. These studies have shown that, when the lateral deviation due to the drift angle on the across track is less than 0.3 pixel, the effect for the relative mean deviation of the inversive spectra will be no more than 7%. when the lateral deviation due to the drift angle on the across track is larger than one pixel, even though the resampling correction is proceeded, the restored spectral data cube still shows an relative mean error more than 10%, which seriously affect the availability of spectral data. © 2017 SPIE. |
作者部门 | 光谱成像技术实验室 |
DOI | 10.1117/12.2256460 |
收录类别 | EI ; ISTP |
语种 | 英语 |
ISSN号 | 0277786X |
引用统计 | |
文献类型 | 会议论文 |
条目标识符 | http://ir.opt.ac.cn/handle/181661/28846 |
专题 | 光谱成像技术研究室 |
作者单位 | 1.Xi'an Institute of Optics and Precision Mechanics of CAS, Xi'an; 710119, China 2.University of Chinese, Academy of Sciences, Beijing; 100049, China 3.Xi'an Jiaotong University, Xi'an; 710049, China |
推荐引用方式 GB/T 7714 | Li, Siyuan,Liu, Huan,Zhang, Geng,et al. Influence analysis of satellite drift angle on spectrum recovery precision of large aperture static interferometer spectrometer[C]:SPIE,2017. |
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文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
Influence analysis o(639KB) | 会议论文 | 限制开放 | CC BY-NC-SA | 请求全文 |
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