The Method of Auxiliary Sources and scattered field singularities (caustics)

The extension of the Method of Auxiliary Sources (MAS) to large body scatte ring problems is investigated. Approximations leading to correct prediction s of scattering field with minimum numerical cost are examined. After inter preting the involved physical phenomena associated with scattering field si ngularities, highly efficient MAS algorithms are developed. Furthermore, th e same approach leads to a source visualization technique, which is of exce ptional interest. As result of this analysis, an efficient "target" visuali zation method for large body scatterers, is proposed.