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平面上方二维介质目标对高斯波束的电磁散射研究
  • 期刊名称：物理学报, 57(9), pp. 5529-5536, 2008.
  • 时间：0
  • 分类：TN011[电子电信—物理电子学] TP391.41[自动化与计算机技术—计算机应用技术;自动化与计算机技术—计算机科学与技术]
  • 作者机构：[1]中国海洋大学海洋遥感研究所,青岛266003, [2]中国海洋大学物理系,青岛266100, [3]西安电子科技大学理学院,西安710071
  • 相关基金：国家自然科学基金（批准号：60571058）和国防预研基金资助的课题.
  • 相关项目：实际海背景中目标的复合电磁散射与预报模型研究
关键词： 互易性定理, 电磁散射, 高斯波束, 二维目标, reciprocity theorem, EM scattering, Gaussian beam, 2D target
中文摘要：

基于矩量法、互易性定理及镜像理论,提出了一种新的混合方法用于研究水平分界面上方二维介质目标对垂直入射高斯波束的差值散射场.应用镜像理论,介质水平分界面可被原始目标相对于该分界面的镜像目标所替代,从而给出散射问题的等效模型.在等效模型中,应用矩量法求解了原始目标及镜像目标对高斯波束的散射场,同时结合互易性定理得到了原目标与其镜像目标之间的耦合散射场.数值计算结果与相关文献方法及MoM所得结果进行了比较,验证了该混合方法的有效性.

英文摘要：

Differential scattering field of vertical incident Gaussian beam from a two-dimensional target near a plane interface is studied by means of a new hybrid method based on the reciprocity theorem （ RT）, the image theory （IT） and the method of moment （ MoM）. By application of IT, the plane interface is replaced by the virtual image of the actual target, and an equivalent model of the scattering problem is presented. In the equivalent model, the scattered field from the actual target and the virtual one are numerically calculated by employing MoM, and the rescattered coupling fields between the actual target and the virtual one are evaluated utilizing the combination of MoM and RT. The numerical results of these tests are presented and compared with previously published calculations for the same problems.

同期刊论文项目
实际海背景中目标的复合电磁散射与预报模型研究
期刊论文 71 会议论文 19 获奖 1
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