Grid Fusion of Rough Sea Surface and Ship for Composite EM Scattering and Image Simulation

Mesh merging and fusion is great important for electromagnetic (EM) scattering simulation of target embedded in extended rough surface, such as ships on ocean, stones on planetary surface etc. This paper uses computer graphics methods to extract the intersection contour of sea level cutting ship model. Then the odd-even rule and Delaunay triangle rule are used to perform mesh fusion of two groups of meshes (target mesh and rough surface mesh). Lastly, the fused meshes are used for high frequency (HF) EM scattering calculation and radar one-dimensional range image simulation of different ship models. The computation results present different radar echo signals for different ship models, which can be further used for target identification with 1D range image signal.