Scattering Centers Extraction Based on Compressed Sensing and Multilevel Fast Multipole Algorithm Acceleration

In this paper, an efficient numerical method based on the multilevel fast multipole algorithm (MLFMA) is used to obtain reliable scattering data by solving electromagnetic (EM) scattering problems. Meanwhile, compressive sensing (CS) from the information theory is also introduced in this method to combine incident plane waves, the number of incident angles of monostatic is reduced greatly and the calculation speed of monostatic scattering is accelerated. And this method provided an efficient and accurate data for scattering centers extraction. Finally, the extraction scattering centers of the target is realized by the combination of MLFMA and CS (MLFMA-CS).