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综合孔径辐射计偏微分方程近场图像反演算法

姚现勋 尚晓舟 苗俊刚 李志平

姚现勋, 尚晓舟, 苗俊刚, 等 . 综合孔径辐射计偏微分方程近场图像反演算法[J]. 北京航空航天大学学报, 2015, 41(2): 267-272. doi: 10.13700/j.bh.1001-5965.2014.0135
引用本文: 姚现勋, 尚晓舟, 苗俊刚, 等 . 综合孔径辐射计偏微分方程近场图像反演算法[J]. 北京航空航天大学学报, 2015, 41(2): 267-272. doi: 10.13700/j.bh.1001-5965.2014.0135
YAO Xianxun, SHANG Xiaozhou, MIAO Jungang, et al. Near field image reconstruction algorithm of synthetic aperture radiometer based on partial differential equations[J]. Journal of Beijing University of Aeronautics and Astronautics, 2015, 41(2): 267-272. doi: 10.13700/j.bh.1001-5965.2014.0135(in Chinese)
Citation: YAO Xianxun, SHANG Xiaozhou, MIAO Jungang, et al. Near field image reconstruction algorithm of synthetic aperture radiometer based on partial differential equations[J]. Journal of Beijing University of Aeronautics and Astronautics, 2015, 41(2): 267-272. doi: 10.13700/j.bh.1001-5965.2014.0135(in Chinese)

综合孔径辐射计偏微分方程近场图像反演算法

doi: 10.13700/j.bh.1001-5965.2014.0135
基金项目: 国家工信部政府基金资助项目(0230001); 国家自然科学基金资助项目(41105007)
详细信息
    作者简介:

    姚现勋(1987—), 男, 河南安阳人, 博士生, yaoxianxun@126.com

    通讯作者:

    李志平(1982—), 女, 山东菏泽人, 讲师, zhiping_li@buaa.edu.cn, 主要研究方向为微波遥感技术.

  • 中图分类号: TP722.6

Near field image reconstruction algorithm of synthetic aperture radiometer based on partial differential equations

  • 摘要: 针对综合孔径辐射计傅里叶变换成像算法在近场条件下失效的问题,提出了一种基于局部自适应偏微分方程的精确数值图像反演算法.该反演算法根据待反演亮温图像的局部特征,在图像背景区域进行各向同性扩散来抑制噪声,在图像目标区域进行自适应扩散来保持图像边缘细节.近场仿真结果表明,该算法有效地降低了可视度测量噪声对亮温图像反演的影响.用一套8 mm波段二维综合孔径辐射计BHU-2D-U进行了成像实验,实验结果证明了该近场图像反演算法的有效性.

     

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出版历程
  • 收稿日期:  2014-03-20
  • 刊出日期:  2015-02-20

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