Random Auxiliary Sources Method based on Point Matching Versus RGW Testing

A comparison between the Rao-Glisson-Wilton (RGW) testing and point matching on the performance of the Random Auxiliary Sources (RAS) method is introduced. The comparison includes the method accuracy, numerical stability as well as suitability for general purpose solutions including special treatments. The comparison includes a smooth spherical structure in addition to a structure with edges. The results show an advantage for point matching for a fat and smooth-surface structure and RGW testing for structures with edges, which is an indication of the general-purpose suitability of the proposed approach.