Microwave Imaging of Electrical Property Distributions By a Forward-Backward Time-Stepping Method

Microwave Imaging of Electrical Property Distributions By a Forward-Backward Time-Stepping Method
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通过前向-后向时间步进方法对电特性分布进行微波成像

DOI：
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发表时间：
2000
期刊：
影响因子：
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通讯作者：
Toshiyuki Tanaka
Toshiyuki Tanaka
中科院分区：
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文献类型：
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作者：
T. Takenaka;H. Jia;Toshiyuki Tanaka

文献摘要

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提出了一种利用时域数据反演有耗圆柱体电特性分布的新算法。该算法是基于边缘保持正则化的优化过程的迭代解。在每次迭代中，时域有限差分法（FDTD）被有效地用作向前和向后求解器。数值仿真结果表明了该算法用于肿瘤检测的可行性。
A new inversion algorithm for reconstructing electrical property distributions of lossy cylindrical objects by means of time-domain data is presented. The algorithm is based on iterative solutions of an optimization process with an edge preserving regularization. The finite-difference time-domain (FDTD) method is used effectively as forward and backward solvers in each iteration. Numerical simulations are carried out to show the feasibility of detecting tumors with this reconstruction algorithm.