Direct Solution of Multiscale Compressed Block Decomposition with Fast Adaptive Cross Sampling- Based Recompression Technology

In this paper, a new fast recompression technology is proposed based on the fast adaptive cross sampling method (FACS). Then this technology is applied with the multiscale compressed block decomposition (MSCBD) method to accelerate the direct solutions of electrically large problems. This technology is adaptive and purely algebraic. What's more, it can be applied into many other methods. The simulation results show the efficiency and accuracy of our method.