An RCS analysis of generic airborne vehicles dependence on frequency and bistatic angle

A radar cross section (RCS) prediction program (SRCRCS), developed to assist in corroboration of RCS measurements and theoretical treatments used to verify airborne vehicle signatures, is reviewed. Emphasis is placed on the use of the first-order, high-frequency asymptotic techniques of physical optics and an equivalent current formulation of the physical theory of diffraction (PTD). The code has been utilized to provide both narrowband and wideband signatures of airborne vehicles in the frequency range from upper UHF to C-bands. The prediction capability includes bistatic geometries from monostatic to forward scattering. Recently, the code has been extended to include a moment-method solution to the electric field integral equation (EFIE). This capability enabled the consideration of electrically small bodies, extending the analytical capability to lower frequencies for the targets of interest. Results that demonstrate a few of the capabilities of the software program are discussed