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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
DOI10.1117/12.2256460
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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