3D Image Reconstruction in Microwave Tomography Using an Efficient FDTD Model

被引：27

作者：

Fhager, A. ^{[1
]}

Padhi, S. K. ^{[2
]}

Howard, J. ^{[2
]}

机构：

[1] Chalmers Univ Technol, Dept Signal & Syst, Biomed Engn Div, SE-41296 Gothenburg, Sweden

[2] Australian Natl Univ, PRL, Res Sch Phys & Engn, Canberra, ACT 0200, Australia

来源：

IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2009年 / 8卷

基金：

澳大利亚研究理事会;

关键词：

Antenna modeling; finite-difference time-domain (FDTD) methods; microwave imaging; microwave measurements; tomography; TIME-DOMAIN; OPTIMIZATION APPROACH; INVERSE SCATTERING; EXTRACTION;

D O I：

10.1109/LAWP.2009.2039032

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This letter describes an efficient three-dimensional (3D) image reconstruction algorithm for microwave tomography. Using the thin-wire approximation with resistive voltage sources (RVS), a realistic FDTD model is created for the transmitting and receiving antennas. To verify the algorithm, image reconstruction is made from experimental data using a cylindrical test object made of sunflower oil. In the results, successful image reconstruction has been shown, indicating that the FDTD model is applicable. For comparison, a reconstruction with a two-dimensional (2D) version of the algorithm was made. A significant increase in accuracy of the reconstructed object was seen for the 3D version.

引用

页码：1353 / 1356

页数：4

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