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International Journal of Antennas and Propagation
Volume 2012, Article ID 735414, 15 pages
Research Article

A Comprehensive Forward Model for Imaging under Irregular Terrain Using RF Tomography

1Sensor Systems Division, University of Dayton Research Institute, Wright-Patterson Air Force Base, OH 45433, USA
2Institute for Electromagnetic Sensing of the Environment (IREA), Italian National Research Council (CNR), 80124 Naples, Italy
3Department of Electrical and Computer Engineering, University of Illinois at Chicago, Chicago, IL 60607, USA
4School of Engineering, The University of Edinburgh, Edinburgh, EH9 3JL, UK

Received 4 March 2012; Revised 26 June 2012; Accepted 17 July 2012

Academic Editor: Weng Cho Chew

Copyright © 2012 Lorenzo Lo Monte et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Imaging of tunnel networks under irregular terrain using RF tomography is generalized to include the possibility of magnetic dipoles (i.e., electric loops) either as transmitting or receiving devices. Forward scattering models are presented, and a generalized method for computing numerical dyadic Green’s functions is detailed. Explicit formulas for fast numerical implementation are also presented. The paper is corroborated with numerical simulations aimed at validating formulas.