Radar Signature Prediction

Design of next-generation vehicles for the Army must include an analysis of their detectability over a wide range of electromagnetic (EM) frequencies. Of particular interest is the frequency range of 50 to 200 GHz. At these small wavelengths, ground andair vehicles comprise millions of square wavelengths of surface area. The surrounding foliage, as well as earth surface terrains complicates the analysis. It is simply not possible with even the most sophisticated super computers to model these problemswith exact solution techniques (Method of Moments, Finite Element Methods,.). Even most existing high frequency techniques become CPU preclusive for these problems. This work will implement an innovative and proven high frequency technique which willsolve this RCS scattering problem in a very CPU efficient manner. The Technique centers around the ability to analyze doubly curved patches directly. A clever foliage model will also be implemented. Terrain modeling will be accomplished in the Phase Ioption. Thus, this Phase I (and option) will result in a functional next-generation Advanced Army RCS Code (AARC). The Phase II work will include the additions of sophisticated imaging techniques and a state-of-the-art graphical interface. Phase IIhybrid development will be driven by the results of Phase I. This work will support the next-generation design of Army air and ground vehicles. This applicability extends to other DoD components. Commercial applications include