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The dependency of backscattering from ocean surface on wind direction under low wind speed (5m/s) is analyzed using observation data by an airborne dual-frequency SAR in the L- and X-bands. The NRCS differencebetween up- and down-wind conditions depends on the incidence angle in the X-band HH polarization, though that in the VV polarization, the NRCS difference is almost zero. Moreover, the NRCS difference...
The dependencies of the backscattering from the ocean surface on the wind direction are analyzed by using the Pi-SAR under weaker wind condition (5 m/s) than the former analysis under stronger wind as 14 m/s. In the X-band HH polarization, the dependency of the normalized cross section (NRCS) on wind direction depends on the incidence angle, differently from the former analysis. In the X-band VV polarization,...
The normalized radar cross section (NRCS) of ocean surface is measured from three directions of illumination by an airborne dual-frequency synthetic aperture radar(SAR) with L- and X-band, and the dependency of the NRCS and the polarimetric ratio on the relative wind direction is analyzed. In X-band, the NRCSs in parallel polarizations represent the dependency on the relative wind direction. The NRCS...
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