Radioabsorbing material optimal using in the reduction of aircraft radar cross-section

Local scattering parts on smooth convex object elements make the most important contribution to reflected signal energy. So, the surface parts of complex shape objects are coated with a radioabsorbing materials (RM) for camouflage purposes. As a rule, the radioabsorbing coating (RC) has sizeable weight and cost. The optimal coating method for the reduction of radar cross-section (RCS) has been obtained for certain illumination and reception directions under limiting conditions for the quantity of RC used. An optimal coating has been realized by solving an integer linear programming problem. Using this method, we present RCS numerical results for a reductive aircraft model partly coated by RM.