Tyndall AFB Site Demo: Data Processing Results for UXO Classification using UWB Full-Polarization GPR System
Abstract
UXO characterization is an important and yet challenging task for the reduction of UXO clearance cost due to the large number of false targets that often appear at UXO sites. Only metallic false targets are considered here since non-metallic objects could be easily screened out with advanced magnetic sensors which have been applied effectively in detecting UXO s up to 1~2 meter depth. Previous attempts from various groups in applying GPR systems for UXO classification were not satisfactory due to excessive clutter resulting either from site characteristics or inadequate antenna designs. The use of surface-based full-polarimetric GPR for UXO characterization was almost nonexistent. Most UXO's have elongated bodies that generate strong electromagnetic resonance and unique polarimetric scattering properties compared to most false-alarm targets. Theoretical aspects of using these two signatures for UXO classification have been discussed in the 1999 UXO Forum [1]. Although the resonance concept has been demonstrated to be quite feasible in a previous effort supported by NAVEODTECHDIV [2], the use of the polarization signature has not been demonstrated from field data. Therefore a UXO test site was setup at Tyndall AFB, Florida, in 1999 for this purpose under the support of ESTCP program. This site contains only metallic objects at known locations to simulate a field presurveyed by advanced magnetic sensors. Many UXO and non-UXO objects were buried at various depth and orientations. Initial measurements were conducted in January 2000, by the CRREL-OSU team using an ultra-wide bandwidth full-polarization (UWBFP) GPR system developed at OSU.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 01, 2001
- Accession Number
- ADA608307
Entities
People
- Chun-Hui Chen
- K. O'neill
- Marissa Higgins
Organizations
- Cold Regions Research and Engineering Laboratory