Simulation and analysis of the clutter from time varying sea with breaking waves

In this paper, we propose a scattering model that not only generates varying sea clutter through time, but also explains the mechanism of multipath scattering from the breaking waves. To describe the phenomena of sea spikes as well as the "super events" from realistic sea clutter, wedges are posited on the two-scale sea surface to provide an approximate simulation of the breaking waves. The scattering of the wedge and multiple reflections that occur from the sea and wedges are considered in ray tracing for a large HH/VV ratio. With this technique, we obtained the time sequence of the time varying sea surface and identified the spiking events in the background. Sea clutter properties with breaking waves are compared with that of the sea.