Iterative PO method based on currents modes and angular Z-buffer technique

An efficient scheme based on physical optics (PO), the angular Z-buffer (AZB) technique and the volumetric space partitioning (SVP) algorithms for computing the RCS of large and complex bodies is presented. An iterative process to calculate multiple interactions between patches has been considered. Ray-tracing acceleration techniques, like the angular Z-buffer has been applied to reduce the CPU-time