Electromagnetic wave imaging of three-dimensional targets using a hybrid iterative inversion method
Electromagnetic wave imaging of three-dimensional targets using a hybrid iterative inversion method
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DOI：
10.1088/0266-5611/28/6/065007
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发表时间：
2012-06
期刊：
影响因子：
2.1
通讯作者：
E. Mudry;P. Chaumet;K. Belkebir;A. Sentenac
中科院分区：
文献类型：
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作者：
E. Mudry;P. Chaumet;K. Belkebir;A. Sentenac
在微波或光波成像装置中，测量的散射场通常与感兴趣的目标参数不是线性相关的。为了重建后者，已经提出了非线性化或线性化的迭代反演技术，如对比源反演法或共轭梯度法(Litman和Crocco，2009年反问题25,020201-5)。本文采用一种结合了CSI和CGM优点的混合方法(HM)，并利用微波实验数据对不同方法的性能进行了比较。在重建精度、计算时间和对噪声的稳健性方面，HM似乎是最好的折衷方案。
In microwave or optical wave imaging set-ups, the measured scattered field is usually not linearly linked to the target parameter of interest. To reconstruct the latter, nonlinearized or linearized iterative inversion techniques, such as the contrast source inversion method (CSI) or the conjugate gradient method (CGM) have been proposed (Litman and Crocco 2009 Inverse Problems 25 020201–5). In this paper, we adapt to the three-dimensional vectorial case, a hybrid method (HM) that combines the advantages of the CSI and CGM, and compare the performances of the different approaches using microwave experimental data. The HM appears to be the best compromise in terms of reconstruction accuracy, computation time and robustness to noise.