| 多极化SAR图像的降斑研究 |
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| 引用本文： | 胡艳芬,王宝发.多极化SAR图像的降斑研究[J].电子学报,2003,31(2):207-210. |
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| 作者姓名： | 胡艳芬 王宝发 |
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| 作者单位： | 北京航空航天大学电子工程系205教研室,北京 100083 |
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| 基金项目： | 国防科技重点实验基金 (No.0 0JS67.1 .1 .HK0 1 0 1 ) |
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| 摘 要： | 对于多极化SAR图像,可以利用其同极化和交叉极化图像的相关性来进行降斑处理.本文对常用的几种基于多极化SAR图像的降斑方法进行了分析,重点研究了最优加权法(the optimal weighting algorithm),在其基础上改进提出了分块加权法,取得了明显的降斑效果,并较大地减少了运算量.最后利用实测的SAR数据进行了验证.
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| 关 键 词： | 多极化SAR图像 图像降斑 最优加权法 分块加权法 |
| 文章编号： | 0372-2112(2003)02-0207-04 |
| 收稿时间： | 2001-08-02 |
Speckle Reduction in Multipolarization SAR Imagery |
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| HU Yan fen,WANG Bao fa.Speckle Reduction in Multipolarization SAR Imagery[J].Acta Electronica Sinica,2003,31(2):207-210. |
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| Authors: | HU Yan fen WANG Bao fa |
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| Affiliation: | Group 205,Beijing University of Aeronautics and Astronautics,Beijing 100083,China |
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| Abstract: | The availability of fully polarimetric SAR data makes it possible to utilize the co polarized and cross polarized images for speckle reduction.In this paper,many of the despeckling processing methods is introduced in detail.The part weighting algorithm is proposed.With minimum resolution broadening and coupling between polarimetric and frequency channels,a series of experimental results about image speckle reduction demonstrate the effectiveness and less computational load. |
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| Keywords: | multipolarization SAR imagery speckle reduction the optimal weighting algorithm the part weighting algorithm |
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