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

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3 Author(s)
Fhager, A. ; Dept. of Signal & Syst., Chalmers Univ. of Technol., Goteborg, Sweden ; Padhi, S.K. ; Howard, J.

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.

Published in:

Antennas and Wireless Propagation Letters, IEEE  (Volume:8 )