多极化合成孔径雷达数据伪彩色合成处理
A FALSE COLOR SYNTHETIC PROCESSING FOR POLARIMETRIC SAR DATA
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摘要: 本文研究了利用多极化合成孔径雷达(SAR)数据产生极化伪彩色合成图的方法,提出了用M11归一化后得到的Stokes矩阵来产生目标的极化合成孔径雷达伪彩色图的新方法。由于它消除了目标总功率大小对图像色彩的影响,因而可以分析场景回波功率太强或太弱目标与极化特征图具有相同形状的目标。另外,还提出用极化特征图方法求出三种极化组合,使两类目标的回波功率相差达到最大,再合成处理成极化合成孔径雷达伪彩色合成图的方法。Abstract: This paper studies on the false color synthetic processing for polarimetric SAR data. A new method to get false color image of polarimetric SAR data with the unitary Stokes matrix is presented. Because this method discards the information of total power, it can be used to analyze the target with more power or less power and the target with the same shape in polarization signatures. The paper also presents the way to find three optimum polarization s combinations to enhance the contrast between two types of scatters with polarization signature and use the polarization synthesis to get false color image of polarimetric SAR data.
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许殿元,丁树柏.遥感图像信息处理,北京:宇航出版社,1990,12,32-45[2]Ulaby F T, Elachi C. Radar Polarimetry for Geoscience Application, MA: Artech House INC.,1990, 4-32.[3] The transmission and reception of elliptically polarized waves, Proc. .[J].IRE..1950, 38:148-[4]Van Zyl J J, Zebker A, Elachi C. Imaging radar polarization signatures: Theory and observation[J].Radio Science.1987, 22(4):529-543[5]Diane L. Radar polarimetry: Analysis tools and applications. IEEE Trans. on Geoscience and Remote Sensing, 1988, GRS-26(6): 774-789. -
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