Efficient 3D forward modeling of GPR scattering from rough ground

Author

Mohammad M. Tajdini;Borja Gonzalez-Valdes;Jose A. Martinez-Lorenzo;Ann W. Morgenthaler;Carey M. Rappaport

Author_Institution

Electrical and Computer Engineering Department, Northeastern University, Boston, MA, USA

fYear

2015

fDate

7/1/2015 12:00:00 AM

Firstpage

1686

Lastpage

1687

Abstract

Ground penetrating radar (GPR) is a viable tool for fast and high fidelity subsurface identification of buried landmines and improvised explosive devices (IEDs). The greatest barrier in GPR surveying systems is the obscuring effect of rough surface clutter. The finite difference frequency domain (FDFD) method can be used to calculate the scattering of the rough terrain. A full 3D FDFD analysis is required but is computationally burdensome when the GPR antennas are distant from the target region. We present an efficient hybrid forward-model to predict the scattering from randomly rough ground surface. In particular, this method models the additive clutter which can then be removed from the observed GPR signals. Our developed forward-looking model compares well with direct FDFD results. The developed model can be used readily for lossy and frequency-dispersive soils.

Keywords

"Rough surfaces","Surface roughness","Ground penetrating radar","Computational modeling","Scattering","Three-dimensional displays","Surface waves"

Publisher

ieee

Conference_Titel

Antennas and Propagation & USNC/URSI National Radio Science Meeting, 2015 IEEE International Symposium on

Type

conf

DOI

10.1109/APS.2015.7305232

Filename

7305232