Abstract
This paper reviews the graphical processing approach (Greco) to compute high-frequency radar cross section (rcs) of complex radar targets in real time with a 3-D graphics workstation. Targets are modeled with a solid modeling cad package using a parametric surface approach. High-frequency rcs of perfectly conducting objects is obtained through physical optics, elementary edge waves and ray-tracing methods. An image of the target at the workstation screen is processed to obtain unit normals, radius of curvature and orientation of illuminated surfaces and edges. The result is a very fast and efficient code for rcs computation of complex targets.
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