【摘要】 本文利用迭代物理光学法（ Ｉ Ｐ Ｏ） 与数值方法相结合的混合方法计算二维开槽电大目标的电磁散射．首先根据等效原理将散射场进行分解，分别采用 Ｉ Ｐ Ｏ 法和矩量法（ Ｍｏ Ｍ） 计算槽缝填充的电大目标和槽缝的散射，并在口径处应用广义网络原理处理耦合问题．数据结果表明本文方法是准确和高效的．更多还原

【Abstract】 A hybrid technique to calculate the scattering of two dimensional large bodies with cracks is developed by combining high frequency approximation method and a numerical method.Using the equivalence theorem,the technique divides the total scattered field into two parts,and employs iterative physical optical method (IPO) for the scattering from the large bodies with the cracks filled with perfect conductors and the moment methods (MoM) to characterize the cracks.The generalized network principle is then used to deal with the coupling across the opening of the aperture.Some numerical results have been obtained,showing the feasibility of proposed method.更多还原