ID 原文 译文
13474 为了对其进行高效的电磁分析,我们在最近发展的VSIE-DDM的基础上开发了不同的分区方式,每个子区域不必相同大小,可以任意形状,使该VSIE-DDM分区更加灵活。 To efficient electromagnetic analysis of this complex FSS structure，based on the recently developed domain decomposition method (DDM)，we first developed different partitioning methods， each subdomain must not be identica! and can be arbitrarily shaped. It makes the VSIE-DDM more flexible.
13475 并且由于FSS的精细单元和薄介质基底,导致网格比较稠密,因此得到维度比较大的矩阵。 Then，due to the fine cells of the FSS and the thin dielectric substrate，the mesh is denser，so a matrix with a ;arger dimension is obtained.
13476 为了更高效计算更大维度的子区自耦合矩阵的逆,使用了内外迭代技术使得该方法可以采用电尺寸更大的子区,获得更好的收敛性,进一步提高了仿真效率。 In order to cacuate the inverse of thesef-couping matrix of the subdomai ns of larger dimens i ons more efficiently，an i nner-outer i terat i ve techni que i s used. Subdomains with larger electrc size can be employed，which makes the DDM obtain better convergence and further improve the simulation efficiency.
13477 通过几个数值算例验证了本文所提算法的计算性能。 We show several numerical examples to verify the computational pei& formance of the algorithm used in this paper.
13478 基于电流的矩量法(method of moments, MoM)和物理光学法(physical optics, PO)的混合算法是目前求解电中尺度和多尺度目标电磁散射和辐射的主要方法,在计算MoM区和PO区的耦合作用时需要对PO区域进行亮区判断。 Method of moments(MoM) and physical optics(PO) hybrid algorithm is the main method for calculating scattered field of electrically mid-scale and multi-scale target. When calculating the coupling effect between MoM region and PO region, we have to judge whether the PO elements is illuminated.
13479 传统纯CPU亮区判断方法时间复杂度为O(N2),时间消耗随着面片数量N增加而急剧增大。 Time complexity of shadowing algorithm based merely on CPU is O(N2) where N represents to the patch number of the target, which increases sharply with the increase of patch number.
13480 文中通过GPU渲染功能及对深度缓冲区(zbuffer)的利用,对PO亮区判断过程进行加速,亮区消耗时间与面片数量无直接联系,在面片数量达到105数量级以上加速优势明显。 In this paper, we use GPU rendering and zbuffer to accelerate the process of lit judge. The time consuming of shadowing process has no relation with increasing patch number and has a better performance especially when the patch number reaches 105magnitude.
13481 将加速的MoM-PO混合方法应用于复杂目标与粗糙面的组合情况,对比多层快速多级子(multi level fastmultipole method, MLFMA)方法,相比于纯PO方法,获得较高的精度。 We apply MoM-PO method to the scattered field calculation from the complex target combined with rough surface. Compared with the multilevel fast multipole algorithm(MLFMA) and PO method, this hybrid method achieves high precision.
13482 相比于单一算法,混合算法有明显优势。 The hybrid algorithm has obvious advantage over single method algorithm.
13483 实际雷达目标散射中心有别于理想散射中心,具有复杂的方位特性,其散射幅度和位置随雷达观测角度改变而变化。 Scattering centers of actual radar target are different from the ideal scattering centers. They have strong dependences of scattering amplitudes and positions on aspect angles of radar line of sight.