摘要
采用混合位积分方程(MPIE)和基于四面体元基函数的矩量法分析计算了埋地三维介质目标电磁散射问题,利用二级离散复镜像(DCIM)和广义函数束(GPOF)相结合的方法求解近场Sommerfeld积分,很好地解决了多层媒质中复杂目标电磁散射计算中的棘手问题,其方法简练、精确、高效,数值分析结果与有关文献吻合很好,证实了该方法的正确性和通用性。此外,该文还通过计算比较了不同观察点、不同目标埋地深度及介质参数的电磁散射特性。
In this paper, the mixed potential integral equation（MPlE） and the method of moments （MOM） based on the tetrahedral modeling basis function are used to analyze electromagnetic scattering from buried 3D targets, and the discrete complex images technique based on a two-level approximation and generalized pencil-of-function method are combined to calculate Sommerfeld integrals, which properly solves the key problem of electromagnetic scattering problem by complex bodies in layered media. The method is concise, accurate and effective. The results obtained are consistent with relevant literature, which confirms the correctness and universality of this approach. Furthermore, the electromagnetic scattering is calculated at different observation points, buried depths, and dielectric parameters of the target.
出处
《雷达科学与技术》
2009年第1期18-22,共5页
Radar Science and Technology
基金
国家自然科学基金(No.60671057)
