As can be seen clearly from Figure 3, there is a good agreement between the GPU-based SBR result and the proposed parallel SBR result, and they both agree well with the MLFMM result.
Cui from South East University for providing the MLFMM method used in this paper.
For instance, whereas the solution of an antenna operating at 1 GHz on a military aircraft would require 650 GBytes of RAM using the conventional Method of Moments (MoM), the MLFMM
can solve the same problem on a single 64-bit processor using only 2.
Technique Memory CPU requirements time [MB] [sec] MLFMM
(Feko) 4000 1800 Hybrid 10 150 Table 2.
As can be seen clearly from Figure 5, there is a good agreement between the GPU-based SBR result and the MLFMM result when the values of RCS are relatively large, as multiple bounces dominate at those angles.
Most recently, the parallel implementation of the MLFMM can solve the problems including scatterers larger than 1000[lambda].
Fan, "An efficient SAI preconditioning technique for higher order hierarchical MLFMM
implementation," Progress In Electromagnetics Research, Vol.
Analysis of scattering from very large three-dimensional rough surface using MLFMM
and ray-based analyses," IEEE Antennas and Propagation Magazine, Vol.