Monostatic scattering from an object near an ocean-like surface from an efficient fast numerical method

The rigorous computation of the monostatic scattering from an object near a one-dimensional sea surface (2D case) needs to solve a problem involving a high number of unknowns. By using a recently developed fast numerical method, called E-PILE+FBSA (Extended Propagation-Inside-Layer Expansion combined with Forward-Backward Spectral Acceleration), the monostatic scattering of such a complex scene can be investigated. Two canonical objects are considered in this paper: the cross and the cylinder. Results allow us to understand the physical mechanisms involved in the coupling between the object and the sea surface.