Landmine and Uxo Discrimination Using Beam forming Tomography

This paper presents results of processing landmine and UXO data collected with a<br>3-D GPR system using beam forming tomography. We provide a brief summary of the<br>beam forming tomography concept for discriminating UXO based on processing data<br>provided by the EPFL\LAMI\DeTec project Lausanne. Using this technique the efficacy<br>of producing high-resolution 3-D images using synthetic GPR array processing was<br>demonstrated. We follow by a description of a new wide band linear array GPR system<br>that uses step-frequency continuous waveform (SFCW). This 3D-GPR system is capable<br>of operating in a stand-off mode; surveying a 2.4 meter swath at speeds up to 5 km/hr;<br>penetrating depths > 2 meters; and providing 5 cm object resolution. Results of<br>processing landmine and UXO data collected from a European training site with this<br>system are presented. A comparison of real time low-level data processing capabilities<br>provided with the 3D-GPR system and advanced beam forming tomographic imaging and<br>analysis capabilities using a separate software package is provided.