Fast Filling Algorithm of EDM-RACA Matrix Based on Centroid Segmentation Moment Method

In this paper, a new method is proposed to solve the problem of accelerating matrix filling. Based on the centroid splitting method, the equivalent dipole moment (EDM) is used for matrix simultaneous filling, and the result has no singularity problem. On this basis, the recompression adaptive cross algorithm (RACA) is used to further compress the matrix. The final result shows that this method has high accuracy and can effectively reduce the calculation time and memory.