Bi-static angular glint calculation on complex targets in near-regions via multilevel fast multipole algorithm

Based on multilevel fast multipole algorithm (MLFMA) accelerated method of moments (MoM) using RWG basis functions with plane incident wave assumption, the bi-static angular glint calculation formulations are derived and applied to perfect electrically conducting (PEC) objects. Using the phase gradient method (PGM) and Poynting vector method (PVM) to get the angular glint, an aircraft is used to presented and the accuracy, Numerical results are presented to indicate the feasible of the method and some new findings are given of the bi-static angular glint in near-filed scattering regions of complex PEC targets, which are neoteric and important in engineering application.