| 講演抄録／キーワード |
| 講演名 |
2011-10-18 17:35
Probability density distribution of backscattering intensity in SAR image of ocean surface
○Akitsugu Nadai・Toshihiko Umehara・Takeshi Matsuoka・Makoto Satake・Tatsuharu Kobayashi・Shoichiro Kojima・Jyunpei Uemoto・Seiho Uratsuka（NICT） |
| 抄録 |
（和） |
The probability distribution of backscattering intensity in SAR image of ocean surface in the L- and X-band parallel polarizations are analyzed in terms of the non-Gaussianity using the difference from the log-normal distribution and the normalized 2nd moment. Though in the X-band parallel polarizations, the non-Gaussianities represent the incidence angle dependency, in the L-band, the incidence angle dependency is quite weak. In the X-band, the non-Gaussianity also depends on the polarization. In the L-band the difference of non-Gaussianity between the parallel polarizations is small. The non-Gaussianity in the X-band is stronger than that in the L-band. Moreover, the non-Gaussianity is almost independent to the illumination azimuth (relative direction of illumination to the wind direction). The difference of non-Gaussianity suggests the difference of scattering mechanism on ocean surface. |
| （英） |
The probability distribution of backscattering intensity in SAR image of ocean surface in the L- and X-band parallel polarizations are analyzed in terms of the non-Gaussianity using the difference from the log-normal distribution and the normalized 2nd moment. Though in the X-band parallel polarizations, the non-Gaussianities represent the incidence angle dependency, in the L-band, the incidence angle dependency is quite weak. In the X-band, the non-Gaussianity also depends on the polarization. In the L-band the difference of non-Gaussianity between the parallel polarizations is small. The non-Gaussianity in the X-band is stronger than that in the L-band. Moreover, the non-Gaussianity is almost independent to the illumination azimuth (relative direction of illumination to the wind direction). The difference of non-Gaussianity suggests the difference of scattering mechanism on ocean surface. |
| キーワード |
（和） |
non-Gaussianity / log-normal distribution / non-Gaussian distribution / SAR / ocean surface / / / |
| （英） |
non-Gaussianity / log-normal distribution / non-Gaussian distribution / SAR / ocean surface / / / |
| 文献情報 |
信学技報, vol. 111, no. 239, SANE2011-106, pp. 231-235, 2011年10月. |
| 資料番号 |
SANE2011-106 |
| 発行日 |
2011-10-10 (SANE) |
| ISSN |
Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 |