A forward approach of constructing three-dimensional electromagnetic parametric scattering model based on geometrical model

This paper presents a forward approach to construct three-dimensional (3 D) electromagnetic parametric scattering model for a known complex radar target based on its geometrical CAD model. Similar to component disassembly method (CMD), we extract strong scattering source based on the components decomposition of complex target but fully considering the mutual coupling between the components, with reference to the existed parametric scattering models that describe the radar response of canonical shapes, we construct the parametric model. Then we obtain the value of the parameters through the theoretical solution and the genetic algorithm. We apply the approach to construct a parametric model of the S LICY model and simulation results demonstrate the effectiveness of the approach.