| The content of this paper is focused on the computering of monostatic Radar Cross Section(RCS) of electrically large~ complex and perfectly conducting targets. The faceting approach is used to model the geometry of the target抯 exterior surfaces. And the tringular facets?optimization is introduced to model the target抯 surfaces, which describes each facet with optimal shape. The scattering field of facets and wedges is computered by Physical Optics (P0) and Method of Equivalent Currents (MEC) respectively, and a closed form solution of Physical Optics is obtained. To improve the computering accuracy of RCS, multi-scattering is included through the interaction between the facet and facet, the facet and wedge, and also the wedge and wedge. And Geometrical Optics (GO) and P0 are used to calculate the Multi-Reflection of facets and facets, a combination of GO and MEC is implemented to calculate the interaction of wedges and facets, a diffraction coefficient is used to calculate the double diffraction of two wedges. |
PDF Full Text Request