Dependence of Polarimetric Characteristics on Sar Resolutions: Experimental Analysis

In this paper, we report the results of the experimental analysis observing the actual pixel variation properties in PolSAR data having various resolutions. Present PolSAR has reached a decimeter-level high resolution. In general, the resolution of PolSAR data is lowered down to 10m–20m in the real space by performing the multi-look process to reduce noise in the pixel values widely for land classification. However, lowering resolution prevents us from discovering new land classes potentially enabled by the resolution enhancement. Through our experiments, we aim to confirm whether it is really meaningful to utilize the respective pixel signals of high-resolution PolSAR data for land classification without any lowering resolution. Although the main cause of the pixel variation occurring in the actual PolSAR data has not been elucidated yet in this letter, we would like to show this experimental results as a material for discussion.

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