中国空间科学技术2009，Vol.29Issue(5)：48-53,6.
空间调制光谱成像仪相对辐射校正方法研究
Study on Relative Radiometric Calibration of the Spatially Modulated Imaging Fourier Transform Spectrometer
姚乐乐 1赵卫 1范士明1
作者信息
- 1. 北京卫星信息工程研究所,北京,100086
- 折叠
摘要
Abstract
The spatially modulated imaging Fourier transform spectrometer (SMIFTS) is different from other spectrometers. Its interference data cube consists of one dimensional spatial information and one dimensional spectral information of land. Because of its special theory, the on-board data calibration of SMIFTS is imperfect. A method of relative radiometric calibration was introduced to generate CCD models of the detectors,which was based on statistics method, and the real on board data of HJ-1A was used to validate it. The results indicate that the method can correct the difference of CCD response and the difference of the imported light field, reduce the nonlinear offsetting of phase, and can raise the precision of spectrum reproduction.关键词
光谱成像/电荷耦合器件/相对辐射校正/光谱复原/航天遥感Key words
Spectral imaging/Charge coupled device/Relative radiometric calibration/Spectrum reproduction/Space remote sensing分类
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姚乐乐,赵卫,范士明..空间调制光谱成像仪相对辐射校正方法研究[J].中国空间科学技术,2009,29(5):48-53,6.
