| 基于实验室定标和均匀景统计的相对辐射定标方法 |
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| 引用本文： | 曾湧,王文宇,王静巧.基于实验室定标和均匀景统计的相对辐射定标方法[J].航天返回与遥感,2012,33(4):19-24. |
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| 作者姓名： | 曾湧 王文宇 王静巧 |
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| 作者单位： | 中国资源卫星应用中心,北京,100094 |
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| 基金项目： | 民用航天专业技术预先研究一天科技[2010]338号项目资助 |
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| 摘 要： | 提出了一种基于实验室定标和均匀景统计的定标方法,并应用于CBERS-02卫星遥感图像相对辐射校正。首先分析宽视场成像仪(Wide Field Imager,WFI)实验室基础定标系数;然后结合均匀景的定标方法,生成一组新的相对辐射定标系数;最后评价WFI图像相对辐射校正的效果。结果表明:文章提出的定标方法有效,可以较好地解决宽幅遥感图像辐射校正问题,同时为遥感卫星相对辐射校正提供了一种新的途径。
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| 关 键 词： | 相对辐射定标 相对辐射校正 中巴地球资源卫星02星 航天遥感 |
A Method of Relative Radiometric Calibration Based on Laboratory Calibration and Homogeneous Scenes |
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| ZENG Yong,WANG Wenyu,WANG Jingqiao.A Method of Relative Radiometric Calibration Based on Laboratory Calibration and Homogeneous Scenes[J].Spacecraft Recovery & Remote Sensing,2012,33(4):19-24. |
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| Authors: | ZENG Yong WANG Wenyu WANG Jingqiao |
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| Institution: | (China Center for Resources Satellite Data and Applications, Beijing 100094, China) |
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| Abstract: | A method of relative radiometric＇ calibration based on laboratory calibration and homogeneous scenes is presented. This method is used to make the radiometric correction of CBERS-02 satellite. First,we analyze the laboratory basic calibration coefficients of WFI（Wide Field Imager） ; then create a set of new calibration coefficients combining the homogeneous scenes; in the end, assess the effect of the WFI images corrected. The results show that the method proposed in this paper is effective, and it can make radiometric correction of wide swath remote sensing images. It provides a new way to relative radiometric correction for remote sensing satellites at the same time. |
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| Keywords: | relative radiometric calibration relative radiometric correction CBERS-02 space remote sensing |
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