Analytic Modeling of the Radar Scattering Characteristics of Aircraft.

摘要

The report investigates the electromagnetic radar scattering parameters for a complex airborne targett at high frequencies. The components of the targe are modeled by simple geometrical shapes,which include ellipsoids,elliptical plates,and semi-infinite cylinders with proper terminations located a finite distance from the opening end. The back-scattered fields from ellipsoids,elliptical plates,and semiinfinite elliptical cylinders are derived by using ray-optical methods. The back-scattered fields from the semi-infinite cylinder with terminations are obtained by employing the Wiener-Hopf techniques and Generalized Scattering Matrix method. These back-scattered fields from individual components are subsequently combined in a consistent manner that takes into consideration the geometrical phase delay and shadowing effect,thus,yielding the total scattered field from the target. (Modified author abstract)