Scattering with parabolic equation methods: application to RCS computation

We apply two-way parabolic equation (PE) techniques to compute the RCS of two-dimensional convex objects. Since the RCS calculations based on rigorous methods require considerable computational resources to model complex targets, asymptotic methods are applied (uniform theory of diffraction). These methods are not easily applied to complex scatterers. We present a method based on the wide-angle parabolic equation capable of solving scattering problems for large complex scatterers. The advantage of the PE models is that they require far less computing resources than full elliptic models while remaining accurate