Reconstruction of dielectric cylinders using FDTD and topology optimization technique
Reconstruction of dielectric cylinders using FDTD and topology optimization technique
复制标题
使用 FDTD 和拓扑优化技术重建介电圆柱体
DOI：
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发表时间：
2000
期刊：
影响因子：
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通讯作者：
S. Hahn
中科院分区：
文献类型：
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作者：
Young;C. Cheon;S. Hahn
采用时域有限差分法（FDTD）和拓扑优化技术求解TM情形下的二维逆散射问题，即重建未知介质柱的形状和材料分布。利用拓扑优化和玻恩迭代法，灵敏度信息的评估，这是在基于梯度的优化算法。采用正则化方法之一的全变分（TV）方案来提高重构形状的质量。
The Finite Difference Time Domain (FDTD) and topology optimization techniques are used for two dimensional inverse scattering problems in the TM case, which are to reconstruct shapes and material distributions of unknown dielectric cylinders. Using topology optimization and the Born iterative method, the sensitivity information is evaluated, which is employed in a gradient-based optimization algorithm. The total variation (TV) scheme, one of the regularization methods, is used to enhance the quality of the reconstructed shape.