| 講演抄録/キーワード |
| 講演名 |
2008-11-25 15:55
Dependency of Backscattering from Ocean Surface on Ocean Winds Observed by an Airborne SAR ○Akitsugu Nadai・Toshihiko Umehara・Takeshi Matsuoka・Tatsuharu Kobayashi・Seiho Uratsuka(NICT) SANE2008-80 |
| 抄録 |
(和) |
The normalized radar cross section (NRCS) of ocean surface in the L- and X-bands is measured from three directions of illumination by an airborne dual-frequency synthetic aperture radar (SAR), and the dependency of the NRCS and the polarization ratio on the relative wind direction is analyzed. In the X-band, the dependencies of the NRCSs in the parallel polarizations show different features each other. The NRCS in the X-band HH polarization has difference between the up- and down-wind conditions, though that in the VV polarization, the NRCSs for the up- and down-wind conditions are almost same. The dependency of the NRCS in the L-band on the wind direction is smaller than that in the X-band. The polarization ratio in the X-band shows the dependency on the wind direction with small difference between the up- and down-wind conditions, though that in the L-band is not apparent. The results suggest the possibility of ocean wind measurement using the polarimetric SAR in the X-band. |
| (英) |
The normalized radar cross section (NRCS) of ocean surface in the L- and X-bands is measured from three directions of illumination by an airborne dual-frequency synthetic aperture radar (SAR), and the dependency of the NRCS and the polarization ratio on the relative wind direction is analyzed. In the X-band, the dependencies of the NRCSs in the parallel polarizations show different features each other. The NRCS in the X-band HH polarization has difference between the up- and down-wind conditions, though that in the VV polarization, the NRCSs for the up- and down-wind conditions are almost same. The dependency of the NRCS in the L-band on the wind direction is smaller than that in the X-band. The polarization ratio in the X-band shows the dependency on the wind direction with small difference between the up- and down-wind conditions, though that in the L-band is not apparent. The results suggest the possibility of ocean wind measurement using the polarimetric SAR in the X-band. |
| キーワード |
(和) |
海上風 / レーダ散乱断面積 / 偏波比 / 合成開口レーダ / / / / |
| (英) |
Ocean Winds / Radar Cross Section / Polarization Ratio / SAR / / / / |
| 文献情報 |
信学技報, vol. 108, no. 318, SANE2008-80, pp. 95-99, 2008年11月. |
| 資料番号 |
SANE2008-80 |
| 発行日 |
2008-11-17 (SANE) |
| ISSN |
Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 |
著作権に ついて |
技術研究報告に掲載された論文の著作権は電子情報通信学会に帰属します.(許諾番号:10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) |
| PDFダウンロード |
SANE2008-80 |