Multilevel fast multipole method for large-surface and subsurface targets

The multi-level fast multipole algorithm (MLFMA) is applied to the problem of scattering from surface and subsurface targets. In this paper we demonstrate how the MLFMA is modified to handle the half-space problem, and present example results for several scattering problems of interest. In particular, we present results for scattering from buried unexploded ordnance.