An analysis of the wave propagation and the scattering from terrain profiles using iterative techniques

Using the method of moments (MoM) for computation of radiation/scattering from large scale surfaces is a very popular approach since the obtained results are accurate and reliable. But the memory requirements in MoM to solve integral equations and the long computational time make the method less favorable. This problem is achieved by using iterative techniques in conjunction with a spectral acceleration method (J. T. Johnson and H. Chou, 1998). The operation count is reduced to O(N) where N refers to the number of unknowns. The process mentioned in this paper focuses on the terrain profiles in rural areas. The aim is to reach large distances at UHF/VHF frequencies