关键词: 微波海洋遥感, 粗糙海面, 电磁散射, 时域有限差分方法

Abstract:

This paper present an electromagnetic simulation method for sea clutter and targets in view of the difficult accurate modeling of complicated sea surface electromagnetic scenario in microwave ocean remote sensing. We employ a ocean wave spectrum model to reconstruct 3D coarse sea surface, consistent with the actual situation. We can therefore set up the corresponding electromagnetic parameters and recover the real sea environment. We further discretize space and time with FDTD and perform iterative computation. We then calculate the dynamic and realtime electromagnetic distribution. We eventually prove the sea surface model by simulation and present the corresponding electromagnetic distribution status. Simulation experiments show that the method can effectively implement the simulation of a complete eletromagnetic scattering from ocean surface.

Key words: microwave ocean remote sensing, sea clutter, electromagnetic scattering, FDTD