Volume 4 Issue 3
Jul.  2015
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Article Navigation >  Journal of Radars  > 2015  >  4(3): 254-264
Li Yang, Lin Yun, Zhang Jing-jing, Guo Xiao-yang, Chen Shi-qiang, Hong Wen. Estimation and Removing of Anisotropic Scattering for Multiaspect Polarimetric SAR Image[J]. Journal of Radars, 2015, 4(3): 254-264. doi: 10.12000/JR15020
Citation: Li Yang, Lin Yun, Zhang Jing-jing, Guo Xiao-yang, Chen Shi-qiang, Hong Wen. Estimation and Removing of Anisotropic Scattering for Multiaspect Polarimetric SAR Image[J]. Journal of Radars, 2015, 4(3): 254-264. doi: 10.12000/JR15020
shu

Estimation and Removing of Anisotropic Scattering for Multiaspect Polarimetric SAR Image

DOI: 10.12000/JR15020
  • 1.

    (Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China)

  • 2.

    (National Key Laboratory of Science and Technology on Microwave Imaging, Beijing 100190, China)

  • 3.

    (University of Chinese Academy of Sciences, Beijing 100049, China)

  • Received Date: 2015-01-30
  • Rev Recd Date: 2015-04-16
  • Publish Date: 2015-06-28
    Abstract
  • Multiaspect Synthetic Aperture Radar (SAR) can generate high resolution images and target scattering signatures in different azimuth angles from the coherent integration of all subaperture images. However, mixed anisotropic scatters limit the application of traditional imaging theory. Anisotropic scattering may introduce errors in polarimetric parameters by decreasing the reliability of terrain classification and detection of variability. Thus a method is proposed for estimating and removing anisotropic scattering in multiaspect polarimetric SAR images. The proposed algorithm is based on the maximum likelihood and likelihood-ratio tests for the two-class case, while considering the speckle effect, the mechanism of removing the anisotropic scattering, and the monotonicity of the Constant False Alarm Rate (CFAR) detection function. We compare the polarimetric entropy before and after removing the anisotropic subapertures, and then validate the algorithm's potential in retrieving the target signature using a P-band quad-pol airborne SAR with circular trajectory.

     

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    • References(20)
  • [1]
    洪文. 圆迹SAR成像技术研究进展[J]. 雷达学报, 2012, 1(2): 124-135. Hong Wen. Progress in circular SAR imaging technique[J]. Journal of Radars, 2012, 1(2): 124-135.
    [2]
    Lee J S, Grunes M R, Pottier E, et al.. Unsupervised terrain classification preserving polarimetrics catteringcharacteristics[J]. IEEE Transactions on Geoscience and Remote Sensing, 2004, 42(4): 722-731.
    [3]
    Pottier E. Unsupervised classification scheme and topography derivation of PolSAR data based on the H/A/a polarimetric decomposition theorem[C]. Proceedings 4th International Workshop Radar Polarimetry, Nantes, France, 1998: 1-4.
    [4]
    Falconer D G and Moussally G J. Tomographic imaging of radar data gathered on a circular flight path about a threedimensional target zone[J]. SPIE, 2487: 2-12.
    [5]
    Soumekh M. Reconnaissance with slant plane circular SAR imaging[J]. IEEE Transactions on Image Processing, 1996, 5(8): 1252-1265.
    [6]
    Chan T K, Kuga Y, and Ishimaru A. Experimental studies on circular SAR imaging in clutter using angular correlation function technique[J]. IEEE Transactions on Geoscience and Remote Sensing, 1999, 37(5): 2192-2197.
    [7]
    Hubert M. Airborne SAR imaging
    [8]
    along a circular trajectory[C]. Sixth European Conference on Synthetic Aperture Radar, Dresden, Germany, 2006: 1-4. Oriot H and Cantalloube H. Circular SAR imagery for urban remote sensing[C]. Seventh European Conference on Synthetic Aperture Radar, Friedrichshafen, Germany, 2008: 1-4.
    [9]
    Ponce O, Prats-Iraola P, Pinheiro M, et al.. Fully polarimetric high-resolution 3-D imaging with circular SAR at L-band[J]. IEEE Transactions on Geoscience and Remote Sensing, 2014, 52(6): 3074-3090.
    [10]
    Lin Y, Hong W, Tan W, et al.. Extension of range migration algorithm to squint circular SAR imaging[J]. IEEE Geoscience and Remote Sensing Letters, 2011, 8(4): 651-655.
    [11]
    张祥坤. 高分辨率圆迹合成孔径雷达成像机理及方法研究[D].[博士论文], 中国科学院空间科学与应用研究中心, 2007. Zhang Xiang-kun. Study on imaging mechanism and algorithm of high-resolution circular SAR[D]. [Ph.D. dissertation], Center for Space Science and Applied Research Chinese Academy of Sciences, 2007.
    [12]
    刘燕, 吴元, 孙光才, 等. 圆轨迹SAR快速成像处理[J]. 电子与 信息学报, 2013, 35(4): 852-858. Liu Yan, Wu Yuan, Sun Guang-cai, et al.. Fast imaging processing of circular SAR[J]. Journal of Electronics Information Technology, 2013, 35(4): 852-858.
    [13]
    Runkle P, Nguyen L, McClellan J, et al.. Multi-aspect target detection for SAR imagery using hidden Markov models[J]. IEEE Transactions on Geoscience and Remote Sensing, 2001, 39(1): 46-55.
    [14]
    Ferro-Famil L, Reigber A, Pottier E, et al.. Scene characterization using subaperture polarimetric SAR data[J]. IEEE Transactions on Geoscience and Remote Sensing, 2003, 41(10): 2264-2276.
    [15]
    吴婉澜, 王海江, 皮亦鸣. 基于子孔径分析的极化散射机理研 究[J]. 雷达科学与技术, 2008, 6(4): 273-277. Wu Wan-lan, Wang Hai-jiang, and Pi Yi-ming. Study on polarimetric scattering bechavior based on subaperture analysis[J]. Radar Science and Technology, 2008, 6(4): 273-277.
    [16]
    Lee J S, Grunes M R, and Kwork R. Classification of multilook polarimetric SAR imagery based on complex Wishart distribution[J]. International Journal of Remote Sensing, 1994, 15(11): 2299-2311.
    [17]
    Lopez-Martinez C, Pottier E, and Cloude S. Statistical assessment of eigenvector-based target decomposition theorems in radar polarimetry[J]. IEEE Transactions on Geoscience and Remote Sensing, 2005, 43(9): 2058-2074.
    [18]
    王海江, 皮亦鸣, 杨小波. 极化SAR图像中基于子孔径分析的 两种非平稳目标检测[J]. 成都信息工程学院学报, 2012, 27(3): 243-246. Wang Hai-jiang, Pi Yi-ming, and Yang Xiao-bo. Two kinds of nonstationary targets detection in Pol-SAR images based on subaperture analysis[J]. Journal of Chengdu University of Information Technology, 2012, 27(3): 243-246.
    [19]
    Ulaby F T, Moore R K, and Fung A
    [20]
    K. Microwave Remote Sensing Active and Passive-Volume II: Radar Remote Sensing and Surface Scattering and Emission Theory[M]. USA: Addison-Wesley Publishing Company Advanced Book Program/World Science Division, 1982: 87-106.
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