POLARIMETRIC OBSERVATION FOR RICE FIELD BY RADARSAT-2 AND ALOS/PALSAR
POLARIMETRIC OBSERVATION FOR RICE FIELD BY RADARSAT-2 AND ALOS/PALSAR
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RADARSAT-2 和 ALOS/PALSAR 对稻田的偏振观测
DOI：
10.1109/igarss.2011.6049664
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发表时间：
2011
期刊：
影响因子：
--
通讯作者：
and Genya SAITO
中科院分区：
文献类型：
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作者：
Chinatsu YONEZAWA;Takahiro IMAI;Daisuke KUNII;Manabu WATANABE;and Genya SAITO
采用极化分解方法对日本稻田全偏振l波段ALOS PALSAR和c波段RADARSAT-2数据集进行了分析。从三分量分解法的分析结果来看，ALOS PALSAR数据的双弹跳散射分量比具有显著的季节变化。RADARSAT-2数据显示，体积散射分量大于50%，且随水稻生长增大。截至8月，PALSAR数据的双弹跳散射分量达到30.40%，而RADARSAT-2数据的双弹跳散射分量不到20%。l波段和c波段在植被面积上穿透深度的差异可能是造成散射机制不同的原因。
Full polarimetric L-band ALOS PALSAR and C-band RADARSAT-2 datasets observing paddy rice field, JAPAN were analyzed by polarimetric decomposition method. From the analysis results by three component decomposition method, remarkable seasonal change is observed by double bounce scattering component ratio on ALOS PALSAR data. RADARSAT-2 data show more than 50% of volume scattering component and it increases with rice growth. Double bounce scattering component reached to 30 40% on PALSAR data, as of August, while it was less than 20% on RADARSAT-2 data. The difference of penetration depth on vegetation area between L-band and C-band may be cause of the difference of the scattering mechanism.