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Terrain effect correction method for Insar ILU image

机译:Insar ILU图像地形效应校正方法

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In this paper, we focus on the topographic effects of InSAR interferometric land use (ILU) images and a corresponding terrain correction method is proposed. Firstly, Effective scattering area correction and angular variation effect correction are performed for intensity information. Secondly, for the coherence information, a novel difference equation method of terrain correction based on the SINC volume decorrelation model is proposed. The Tandem-X/Terrasar-X InSAR data and SRTM DEM data are used to illustrate the method. The results showed that terrain effects not only existed in the intensity image, but also existed obviously in the coherence image and can been effectively removed by the proposed method. Finally, the interpretability of the ILU imagery treated in this manner is improved in comparison to the uncorrected case.
机译:在本文中,我们重点关注InSAR干涉土地利用(ILU)图像的地形效应,并提出了相应的地形校正方法。首先,对强度信息进行有效散射面积校正和角度变化效果校正。其次,针对相干信息,提出了一种基于SINC体积去相关模型的地形校正差分方程方法。 Tandem-X / Terrasar-X InSAR数据和SRTM DEM数据用于说明该方法。结果表明,地形效应不仅存在于强度图像中,而且在相干图像中也明显存在,可以有效地消除地形影响。最后,与未校正的情况相比,以这种方式处理的ILU图像的可解释性得到了改善。

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