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Radiative transfer theory for polarimetric remote sensing of pine forest

机译:辐射转移理论在松树林偏振遥感中的应用

摘要

The radiative transfer theory is applied to interpret polarimetric radar backscatter from pine forest with clustered vegetation structures. To take into account the clustered structures with the radiative transfer theory, the scattering function of each cluster is calculated by incorporating the phase interference of scattered fields from each component. Subsequently, the resulting phase matrix is used in the radiative transfer equations to evaluate the polarimetric backscattering coefficients from random medium layers embedded with vegetation clusters. Upon including the multi-scale structures, namely, trunks, primary and secondary branches, as well as needles, we interpret and simulate the polarimetric radar responses from pine forest for different frequencies and looking angles. The preliminary results are shown to be in good agreement with the measured backscattering coefficients at the Landes maritime pine forest during the MAESTRO-1 experiment.
机译:辐射传输理论被用于解释偏振光雷达背向散射从松散的森林与簇生的植被结构。为了考虑到具有辐射传递理论的簇结构,通过合并来自每个分量的散射场的相位干扰来计算每个簇的散射函数。随后,将所得的相位矩阵用于辐射传递方程中,以评估嵌入有植被簇的随机介质层的偏振反向散射系数。在包括树干,主要和次要分支以及针等多尺度结构后,我们解释并模拟了松林对不同频率和视角的偏振雷达响应。结果表明,初步结果与在MAESTRO-1实验期间在Landes海上松林中测得的反向散射系数非常吻合。

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