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Seasonal Change Investigation of Water Area in Lake Sakata Based on POLSAR Image Analysis
http://hdl.handle.net/10191/21363
http://hdl.handle.net/10191/213638dbcb353-90f9-4d32-af9d-312fbde23f7d
名前 / ファイル | ライセンス | アクション |
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Item type | 会議発表論文 / Conference Paper(1) | |||||
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公開日 | 2013-02-19 | |||||
タイトル | ||||||
タイトル | Seasonal Change Investigation of Water Area in Lake Sakata Based on POLSAR Image Analysis | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源 | http://purl.org/coar/resource_type/c_5794 | |||||
タイプ | conference paper | |||||
著者 |
Sato, Ryoichi
× Sato, Ryoichi× Yajima, Yuki× Yamaguchi, Yoshio× Yamada, Hiroyoshi |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | This paper examines seasonal change of the water area in Lake Sakata by using Polarimetric Synthetic Aperture Radar (POLSAR) image analysis. Statistical POLSAR image analysis is carried out for both X- and L-band data, based on a threecomponent scattering power decomposition method, where the decomposed components are surface scattering, doublebounce scattering and volume scattering components. From the results of the image analysis for the L-band POLSAR data acquired by Pi-SAR system, it is found that strong doublebounce scattering can be observed at the vicinity of the boundary region between water area and the surrounding emerged-plants area in early and middle summer seasons. To verify the generating mechanism of the double-bounce scattering, the Finite-Difference Time-Domain (FDTD) polarimetric scattering analysis is also executed for a simplified boundary model, which simulates the local boundary region around the lake and consists of lots of vertical thin dielectric pillars on a perfect electric conductor (PEC) plate or on a PEC and dielectric hybrid plate. Taking into account the polarimetric feature of the double-bounce scattering obtained by both the FDTD and POLSAR image analyses, one can distinguish the water area form the bush of the emerged-plants around the lake, even when the water area are concealed by emergedplants and/or floating-leaved plants. Consequently, it is found that by using the proposed approach, one can estimate the water area seasonal change for the lake and the surrounding wetland. | |||||
書誌情報 |
International Symposium on Antennas and Propagation en : International Symposium on Antennas and Propagation 巻 2006, 号 3B1b-1, p. 1-5, 発行日 2006-11 |
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出版者 | ||||||
出版者 | The Institute of Electronics, Information and Communication Engineers | |||||
権利 | ||||||
権利情報 | copyright(C)2006 IEICE | |||||
著者版フラグ | ||||||
値 | publisher | |||||
異版である | ||||||
関連タイプ | isVersionOf | |||||
識別子タイプ | URI | |||||
関連識別子 | http://ap-s.ei.tuat.ac.jp/isapx/ |