Grasp of paddy rice fields scattered characteristic using L-band multi polarimetric SAR

PALSAR的后向散射系数(σ^0)使水稻种植周期增加了4~5分贝，水稻高度与σ^0呈正相关。但由于各田σ^0差异较大，难以确定水稻的专化性和水稻的生长量。另一方面，当利用全极化数据，同时种植同一作物的多个水田看起来像一个单元时，有可能利用三分量分解分析等方法来检测水稻插秧，但由于分辨率不够，很难找到每一块田之间的关系。

Backscatter coefficient (σ^0) of PALSAR increase about 4 to 5 dB the cultivation period of paddy rice, and correlation was seen in the height of paddyrice and σ^0. However it was difficult to specific planted paddy rice and to the amountof growth of paddy rice because the difference of σ^0 of each fields was large. On the other hand, when full-polarimetric data used and several paddy fields cultivated same time same crop looks like one unit, there is a possibility to be able to detect about the transplanting of the paddy rice using three component decomposition analysis etc. though it was difficult to find the relation of each field because resolution was not enough.