Imaging Below Irregular Terrain Using RF Tomography
journal contributionposted on 2014-02-03, 00:00 authored by Lorenzo Lo Monte, Francesco Soldovieri, Michael C. Wicks, Danilo Erricolo
Radio-frequency (RF) tomography is extended for imaging underground structures and tunnels assuming rough terrain. The theory of RF tomography described in an earlier paper remains applicable, provided that a numerical Green’s function is computed. An FFT-based and intrinsically parallel method for obtaining numerical Green’s functions is described. This method is corroborated with explicit formulas and implemented for RF tomography. Simulated data computed using a finite-difference time-domain code are used to demonstrate performance.
This work was supported in part by the U.S. Air Force Research Laboratory under Contract FA-8601-09-F-0024 and in part by the U.S. Air Force Office of Scientific Research under Grant FA-9550-05-1-0443.
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