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首页> 外文期刊>Geoscience and Remote Sensing Letters, IEEE >Four-Component Decomposition of Polarimetric SAR Images With Deorientation
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Four-Component Decomposition of Polarimetric SAR Images With Deorientation

机译:偏向极化SAR图像的四分量分解

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摘要

A modified Yamaguchi decomposition with deorientation is proposed for analyzing multilook polarimetric synthetic aperture radar (PolSAR) data. Deorientation is first applied to a coherence matrix; then, the coherence matrix is decomposed into four components by the Yamaguchi decomposition. A special kind of target is found for which the original Yamaguchi decomposition output is not appropriate. This problem is solved by applying deorientation prior to the Yamaguchi decomposition. Moreover, the deorientation procedure enhances double-bounce scattering from urban areas in the decomposition output. Comparisons of the Yamaguchi decompositions with and without deorientation are shown for PolSAR data from both airborne and spaceborne systems.
机译:提出了一种改进的带有解位的山口分解方法,用于分析多视极化合成孔径雷达(PolSAR)数据。首先将脱取向应用于相干矩阵;然后,通过Yamaguchi分解将相干矩阵分解为四个分量。发现一种特殊的目标,原始的Yamaguchi分解输出不适用于该目标。通过在Yamaguchi分解之前应用脱取向解决了此问题。此外,脱取向程序增强了分解输出中来自市区的双反射散射。对于来自机载和星载系统的PolSAR数据,显示了有无取向和无取向的Yamaguchi分解的比较。

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