摘要
表面离散化边界方程法可以独立计算物体表面任意点处的电流密度,而所需求逆的矩阵阶数远小于矩量法。文中将它与渐近波形估计相结合实现了空域内的快速扫描,从而避免了许多重复计算。与矩量法相比,新方法降低了所需求逆矩阵的阶数,减小了存储需求,缩短了计算时间,提高了计算效率且易于并行计算。文中还将该方法成功运用到电大尺寸物体的散射问题中。计算表明对于尺寸越大的物体,新方法的优势就越明显。
The recently developed on-surface discretized boundary equation （OS-DBE） method for scattering by a conducting cylinder allows an independent determination of the current density at any given point on the object surface with a matrix of smaller order than that in the method of moments. This paper incorporates the asymptotic waveform evaluation technique into the OS-DBE method to the fast spatial sweep calculation to generate the whole current distribution, reduces the number of current calculation points at which the utilization of the OS-DBE is necessary and improves the numerical efficiency. Besides, numerical results are Presented to demonstrate the validity and efficiency of the proposed technique compared to the method of moment （MoM）.
出处
《微波学报》
CSCD
北大核心
2009年第5期1-5,共5页
Journal of Microwaves
关键词
表面离散化边界方程法
渐近波形估计
空域扫描
矩量法
On-surface discretized boundary equation method, Asymptotic waveform evaluation technique, Spatial sweep, Method of moment
