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

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Fhager, Andreas C-R
Padhi, Shantanu
Howard, John

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Institute of Electrical and Electronics Engineers (IEEE Inc)

Abstract

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.

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IEEE Antennas and Wireless Propagation Letters

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2037-12-31