针对舰船目标尺寸巨大、形状复杂、电磁设备繁多的特点，选取并行多层快速多极子技术来模拟仿真其电磁环境。
Electromagnetic environment of ship, an extremely large complex target with various electromagnetic equipments, was simulated by parallel multi-level fast multipole algorithm (MLFMA).
本文结合平面边界元法和平面多极子展开法，求解平面分层埋入体的电磁散射。
Multiple expansion for the buried body in the stratified Media attd Boundary Element Method (BEM) are combined to obtain electromagnetic scattering field of buried body in the stratified Media.
均衡混合场积分方程与多层快速多极子方法(MLFMA)结合使用，可以方便地求解含腔导体目标的电磁散射。
Combination of ECFIE with multilevel fast multipole algorithm (MLFMA) can easily solve electromagnetic scattering from conductive target with open cavity.
本文采用基于高阶矩量法的快速多极子方法(FMM)及多层快速多极子方法(MLFMA)计算复杂目标的电磁散射。
The present paper applies fast multipole method (FMM) and multilevel fast multipole algorithm (MLFMA) based on the higher order moment of method (mom) to solve scattering from complex target.
最后，在上述研究基础上，针对高效求解复杂目标电磁散射的问题研究了复杂度分别为和的快速多极子方法以及多层快速多极子方法。
Following, based on the above research foundation and aimed at resolving the scattering by the complex target with high efficient solution, extensive study of the FMM and MLFMA has been carried out.
第四章研究了低频UWB-SAR系统的极化校准问题。首先研究了定标体的多极化电磁散射特性。
The polarimetric calibration methods for low frequency UWB-SAR are studied in chapter 4. Firstly, polarimetric electromagnetic scattering characteristics of the calibrators are studied.
第四章研究了低频UWB-SAR系统的极化校准问题。首先研究了定标体的多极化电磁散射特性。
The polarimetric calibration methods for low frequency UWB-SAR are studied in chapter 4. Firstly, polarimetric electromagnetic scattering characteristics of the calibrators are studied.
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