geometrical optics method, as implemented in different versions of FEKO, and shooting-and-
bouncing-rays with physical optics method, as implemented in SigmaHat, to calculate the
radar cross section (RCS) of a large complex model airframe. A scale model Boeing 707
(106λ) and accurately scanned CAD model is utilized for this study. The investigation is
conducted by comparing the calculated RCS to measured data, obtained in a compact …