Tabulated interaction method for electromagnetic scattering from lossy irregular terrain profiles

Abstract

In this paper an efficient method is proposed for computing electromagnetic wave propagation over terrain profiles. The paper extends the Tabulated Interaction Method (TIM) [1], applying it to the problem of 2D wave scattering from lossy surfaces using a coupled surface integral equation formulation. The proposed method is compared with the recently proposed Chacracteristic Basis Function Method (CBFM) [2], [3] with which it shares several features. The numerical analysis demonstrates that TIM has a dramatically lower computational complexity and storage than CBFM.