Analysis of Polarization Orientation Angle Shifts by Artificial Structures
Analysis of Polarization Orientation Angle Shifts by Artificial Structures
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DOI：
10.1109/tgrs.2007.905973
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发表时间：
2007-10
影响因子：
8.2
通讯作者：
K. Iribe;Motoyuki Sato
中科院分区：
文献类型：
--
作者：
K. Iribe;Motoyuki Sato
本文分析了人造结构引起的极化方向角偏移，并尝试将表征城市区域的联合收割机目标方位信息与圆极化法提取的极化方向角信息相结合。为了说明在城市地区所代表的极化方向角偏移的特性，使用了由Pi-SAR获得的仙台市的X波段极化合成孔径雷达（SAR）数据集。本文基于木村的想法，偏振方向角的变化取决于人工结构，特别是对于目标的旋转角。研究发现，目标旋转角度与飞行方向的相对关系也会影响极化方向角的偏移。根据这些结果，可以通过从极化SAR数据计算极化方向角偏移来估计目标旋转角。
In this paper, the polarization orientation angle shifts induced by artificial structures were analyzed and attempted to combine target orientation information which characterizes an urban area with the polarization orientation angle information extracted by the circular-polarization method. In order to illustrate the characteristic of the polarization orientation angle shifts represented in an urban area, the X-band polarimetric synthetic aperture radar (SAR) datasets of Sendai City acquired by Pi-SAR were used. This paper is based on Kimura's idea that the variation of the polarization orientation angle shifts depends on the artificial structures, particularly for the target rotation angle. We found that the polarization orientation angle shift is also affected by the relative relationship between the target rotation angle and the flight direction. From these results, it is possible to estimate the target rotation angle via computation of the polarization orientation angle shift from polarimetric SAR data.