Simulation of Polarization SAR Imaging of Sea Wave Using Two-Scale Model

Simulation of polarization synthetic aperture radar (SAR) imaging of sea wave has great significance on sea surface scattering. According to the theory of random ocean wave, rough ocean surface is modeled in this paper. Random rough ocean surface which contains swell is constructed using the two-scale-model. This treatment takes both the large scale and small scale surface into account. By using the Bragg scattering model and the geometry optical approximation method, polarization SAR images of the modeled ocean surface at different wind speeds are simulated. The effects of the parameters of ocean waves and the parameters of SAR system are analyzed. Finally, some useful conclusions are drawn, which are helpful for extracting the information of ocean surface.