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合成孔徑雷達(dá)多視圖像中4個(gè)Stokes參數(shù)的統(tǒng)計(jì)特性

金亞秋,  張南雄

金亞秋, 張南雄. 合成孔徑雷達(dá)多視圖像中4個(gè)Stokes參數(shù)的統(tǒng)計(jì)特性[J]. 電子與信息學(xué)報(bào), 2002, 24(11): 1648-1658.
引用本文: 金亞秋, 張南雄. 合成孔徑雷達(dá)多視圖像中4個(gè)Stokes參數(shù)的統(tǒng)計(jì)特性[J]. 電子與信息學(xué)報(bào), 2002, 24(11): 1648-1658.
Jin Yaqiu, Zhang Nanxiong. Statistics of four stokes parameters in multilook polarimetric SAR imagery[J]. Journal of Electronics & Information Technology, 2002, 24(11): 1648-1658.
Citation: Jin Yaqiu, Zhang Nanxiong. Statistics of four stokes parameters in multilook polarimetric SAR imagery[J]. Journal of Electronics & Information Technology, 2002, 24(11): 1648-1658.

合成孔徑雷達(dá)多視圖像中4個(gè)Stokes參數(shù)的統(tǒng)計(jì)特性

Statistics of four stokes parameters in multilook polarimetric SAR imagery

  • 摘要: 該文應(yīng)用散射振幅函數(shù)的Wishart聯(lián)合分布,推導(dǎo)了合成孔徑雷達(dá)(SAR)多視圖像中4個(gè)Stokes參數(shù)的概率密度函數(shù)(PDF)。用視圖數(shù)和4個(gè)Stokes參數(shù)的均值解析表達(dá)的PDF與現(xiàn)有的R.Touzi和A.Lopes(1996)的結(jié)果作了比較。同時(shí),用機(jī)載SAR在幾個(gè)典型區(qū)域上的多波段(P,L,C)成像數(shù)據(jù)驗(yàn)證了4個(gè)Stokes參數(shù)的理論統(tǒng)計(jì)分布,討論了有效視圖數(shù)、方差和分布斜度。實(shí)驗(yàn)數(shù)據(jù)與理論分布有相當(dāng)好的吻合,還討論了PDF在地表分類中的應(yīng)用。
    Abstract: Using the Wishart joint distribution of the scattering amplitude functions, the probability density functions (PDFs) of four Stokes parameters for multilook polarimetric SAR data are derived. The PDFs are formulated analytically with dependence upon the look number and mean values of the Stokes parameters, and are compared with the results by R. Touzi and A. Lopes (1996). The statistic histograms of four Stokes parameters are validated by the AirSAR imagery at multi-P, L, C bands observed over some typical sites such as water, sparse trees and forest. An effective look-number might be especially assigned to have excellent matching with the AirSAR data. Potential application of the statistics of four Stokes parameters to classification of the terrain types is studied.
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  • H.A. Zebker, J. J. Van Zyl, Image radar polarimetry: a review, Proc. IEEE, 1991, 79(11),1583-1605.[2]D.R. Sheen, L. P. Jonhston, Statistical and spatial properties of forest clutter measured with polarimetric synthetic aperture radar (SAR), IEEE Trans. on Geoscience and Remote Sensing,1992, GRS-30(3), 578-588.[3]J.S. Lee, M. R. Grunes, G. De Grandi, Polarimetric SAR speckle filtering and its implication for classification, IEEE Trans. on Geoscience and Remote Sensing, 1999, GRS-37(5), 2363-2373.[4]J.S. Lee, M. R. Grunes, T. L. Ainsworth,et al., Unsupervised classification using polarimetric decomposition and the complex Wishart classifier, IEEE Trans. on Geoscience and Remote Sensing, 1999, GRS-37(5), 2249-2257.[5]J.S. Lee, K. W. Hoppel, S. A. Mango, et al., Intensity and phase statistics of multilook polarimetric and interferometric SAR imagery, IEEE Trans. on Geoscience and Remote Sensing, 1994,GRS-32(5), 1017-1027.[6]A.C. Frery, H. J. Mller, A model for extremely heterogeneous clustter, IEEE Trans. on Geoscience and Remote Sensing, 1997, GRS-35(3), 648-659.[7]S. Chandrasekhar, Radiative Transfer, New York, Dover Pub., 1960, 1-50.[8]Y.Q. Jin, Electromagnetic Scattering Modelling for Quantitative Remote Sensing, Singapore,World Scientific, 1993, 1-11.[9]R. Barakat, Statistics of the Stokes parameters, J. Opt. Soc. Am. A., 1987, 4(7), 1256-1263.[10]R. Touzi, A. Lopes, Statistics of the Stokes parameters and of the complex coherence parameters in one-look and multilook speckle fields, IEEE Trans. on Geoscience and Remote Sensing, 1996,GRS-34(2), 519-531.[11]P.C. Dubois.[J].L. Norikane, Data reduction for image radar polarimetry, IGASS87 Proc.,(International Geoscience and Remote Sensing Symposium), Ann Arborn, MI USA.1987,:-[12]I.S. Gradshteyn, I. M. Ryzhik, Table of Integrals, Series, and Products, New York, Academic Press, 1980, 721,318, 340, 705. ［13］F.T. Ulaby, M. C. Dobson, Handbook of Radar Scattering Statistics for Terrain, Norwood, MA,Artech House, 1989. ［14］A. Freeman, S. L. Durden, A three-component scattering model for polarimetric SAR data, IEEE Trans. on Geoscience and Remote Sensing, 1996, GRS-36(3), 963-973.
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出版歷程
  • 收稿日期:  2001-05-08
  • 修回日期:  2001-12-26
  • 刊出日期:  2002-11-19

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