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International Journal of Antennas and Propagation
Volume 2014, Article ID 274063, 9 pages
Research Article

Using FDFD Technique in Two-Dimensional TE Analysis for Modeling Clutter in Wall Penetrating Radar

1Northeastern University, Boston, MA 02115, USA
2CenSSIS, Northeastern University, Boston, MA 02115, USA

Received 19 July 2013; Revised 28 November 2013; Accepted 12 December 2013; Published 19 January 2014

Academic Editor: Danilo Erricolo

Copyright © 2014 David Insana and Carey M. Rappaport. 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.


Finite difference frequency domain (FDFD) computational electromagnetic modeling is implemented to perform a two-dimensional analysis for the application of wall penetrating radar (WPR). Resolving small targets of interest, embedded in a strong clutter environment of unknown configuration, is difficult. Field interaction between clutter elements will dominate the received fields back-scattered from the scene. Removing the effects of clutter ultimately relies on the accuracy of the model. Analysis starts with a simple model that continues to build based on the dominant scattering features of the scene. FDFD provides a steady state frequency response to a discrete excitation. Taking the fast Fourier transform of the wideband response of the scene, at several external transmit/receive locations, produces 2D images of the clutter, which are used to mature the model.