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首页> 外文会议>IEEE International Geoscience and Remote Sensing Symposium >Retrieval of Fully Polarimetric Mueller Matrix Under Faraday Rotation Effect at P Band in Space-borne Polarimetric SAR Observation
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Retrieval of Fully Polarimetric Mueller Matrix Under Faraday Rotation Effect at P Band in Space-borne Polarimetric SAR Observation

机译：在PATRACE偏振SAR观察中PA频段下对FARADAY旋转效果下全极化穆勒矩阵的检索

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摘要

Spaceborne microwave observation of subcanopy and subsurface requires the SAR (polarimetric synthetic aperture radar) technology at lower microwave frequencies, such as P band. However, SAR observation at P band is remarkably influenced by Faraday rotation (FR) effect through ionosphere. An example in this paper illustrates why the measured polarimetric data with FR at P band cannot be directly applied to terrain surface classification. We further present that the parameters u, v, H, a, A for terrain surface classification derived from the polarimetric data without FR, which are recovered from the data with FR, can be applied to the surface classification, even there is a ±π/2 ambiguity error unresolved. Based on gradual change of FR degree along geographical location, a method to eliminate the ±π/2 ambiguity error is designed. Thus, the polarimetric scattering vector and Mueller matrix without FR and ±π/2 ambiguity can be fully inverted from the measured polarimetric data with FR.
机译：Spablanthe微波对细胞和地下的观察需要在较低微波频率下的SAR（偏振型合成孔径雷达）技术，例如P频段。然而，在P频段的SAR观察通过电离层的法拉第旋转（FR）效应显着影响。本文中的一个例子示出了为什么P频带AT FR的测量的偏振数据不能直接应用于地形表面分类。我们进一步存在从使用FR数据恢复的没有FR的GIGRIERICETRIC数据的参数U，V，H，A，A，A，用于从DR FR恢复的参数U，V，H，A，A，即使存在±π / 2未解决的歧义误差。基于沿着地理位置的FR程度的逐渐变化，设计了一种消除±π/ 2模糊误差的方法。因此，没有FR和±π/ 2模糊的偏振散射载体和穆勒矩阵可以与FR测量的偏振数据完全反转。

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