Analysis of near-field scattering by targets on rough sea surface

Based on the method of physical optics (PO) and the method of ray tracing (RT), we analyzed the near-field primary scattering of the panels, the near-field secondary scattering between the facets, the near-field composite scattering between facets and rough sea surface. Simultaneously, we calculated the near-field and far-field scattering versus incident angles by a dihedral made of two orthogonal plates and a ship model, respectively, and then discussed the characteristics of the near-field and far-field scattering. The near-field composite scattering between the ship model and sinusoidal composed surface were calculated and analyzed.