| 基于Kalman滤波的卫星光谱成像仪非均匀性场景校正 |
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| 引用本文： | 王向华.基于Kalman滤波的卫星光谱成像仪非均匀性场景校正[J].上海航天,2008,25(5). |
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| 作者姓名： | 王向华 |
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| 作者单位： | 中国科学院,上海技术物理研究所,上海,200083 |
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| 摘 要： | 为消除在轨卫星光谱成像仪的非均匀性,提出了一种基于Kalman滤波器校正算法.给出了校正算法,建立了均方根误差和列向粗糙度等评价指标.对美国TERRA卫星MODIS仪器图像的校正试验结果表明:用Kalman滤波器校正方法去除遥感图像中非均匀性条带的效果明显,校正后图像的品质显著提高.
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| 关 键 词： | 多元探测器 定量化 非均匀性校正 Kalman滤波器 均方根误差 列向粗糙度 |
Scene-Based Method for Nonuniformity Correction of Medium-Resolution Spectrum Imager |
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| WANG Xiang-hua.Scene-Based Method for Nonuniformity Correction of Medium-Resolution Spectrum Imager[J].Aerospace Shanghai,2008,25(5). |
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| Authors: | WANG Xiang-hua |
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| Institution: | WANG Xiang-hua(Shanghai Institute of Technical Physics,CAS,Shanghai 200083,China) |
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| Abstract: | To delete the nonuniformity of spectrum imager on-board,a nonuniformity correction algorithm based on Kalman filtering was put forward in this paper.The correction algorithm was presented,and evaluation indexes such as mean square error and row roughness were given out.The image correction of MODIS on US TERRA satellite showed that the algorithm of Kalman filtering was available for destirping imaging spectroradiometer data,which could improve the quality of image obviously. |
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| Keywords: | Multi-sensors Quantificational Nonuniformity correction Kalman filtering Mean square error Row roughness |
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