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首页> 外文期刊>IEEE Transactions on Antennas and Propagation >3-D Electromagnetic Scattering and Inverse Scattering by Magnetodielectric Objects With Arbitrary Anisotropy in Layered Uniaxial Media
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3-D Electromagnetic Scattering and Inverse Scattering by Magnetodielectric Objects With Arbitrary Anisotropy in Layered Uniaxial Media

机译：三维磁电物物体在分层单轴介质中具有任意各向异性的磁电物物体逆散射

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摘要

3-D electromagnetic (EM) scattering and inverse scattering of magnetodielectric objects with arbitrary anisotropy embedded in layered uniaxial media are studied. The stabilized biconjugate gradient fast Fourier transform (BCGS-FFT) method is employed to solve the forward scattering problem formulated by the combined field volume integral equation (CFVIE). In the inversion, we use the variational Born iterative method (VBIM) enhanced by the structural consistency constraint (SCC) to reconstruct eighteen unknown dielectric parameters of the scatterers simultaneously. In order to further improve the accuracy of the reconstructed permittivity, permeability, and conductivity of the scatterers, we propose the structural continuity scanning (SCS) technique. Comparisons between the BCGS-FFT solution and simulated results from finite element method (FEM) are performed to verify the reliability and accuracy of the forward solver. Meanwhile, we reconstruct the multiple anisotropic parameters of several typical structures embedded in layered uniaxial media to show the feasibility and anti-noise ability of the inversion algorithm.
机译：研究了用嵌入分层单轴介质的任意各向异性的磁电物体的3-D电磁（EM）散射和逆散射。采用稳定的Biconjugate梯度快速傅里叶变换（BCGS-FFT）方法来解决由组合场体积积分方程（CFVIE）配制的前向散射问题。在反转中，我们使用结构一致性约束（SCC）来增强的变分迭代方法（VBIM）同时重建散射体的18个未知的介电参数。为了进一步提高散射体的重建介电常数，渗透率和电导率的准确性，我们提出了结构连续性扫描（SCS）技术。执行BCGS-FFT解决方案与来自有限元方法（FEM）的模拟结果之间的比较以验证前向求解器的可靠性和准确性。同时，我们重建嵌入层间单轴介质中的几种典型结构的多各向异性参数，以显示反转算法的可行性和抗噪声能力。

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