摘要
本文提出了另一种将外推技术和矩量法结合起来解决电大尺寸目标的电磁散射问题的混合法,在提取目标的特征信息时应用了抗噪声性能较好的矩阵束方法,在外推时应用了一种简单有效的拟合方法。用本文的方法计算了介质条带和细直导线的双站散射截面,所得结果与一般分域基矩量法结果吻合得很好,表明了本文方法的有效性。
An alternative hybrid method which combines an extrapolation technique with the moment method (MM) for solving scattering problems involving large scatterers is presented. The Matrix Pencil (MP) method which is more robust to noise in the sampled data is employed to extract characteristic parameters, and an effective and simple extrapolation technique is adopted. The bistatic RCS of 2D dielectric strip and 3D conduction thin wire are calculated by the modified method in this paper. The results are in good agreement with those from general MM. The effectiveness of the proposed method is demonstrated.
基金
国家自然科学基金
关键词
电磁散射
混合法
矩阵束法
外推技术
EM scattering, Hybrid methods, Matrix pencil method, Extrapolation technique
