3D Geophysical Data Collection and Analysis for UXO Discrimination
Abstract
Ordnance detection and discrimination techniques are typically based on two dimensional representations of geophysical data such as contoured grids. These grids are created by interpolating data collected along transect lines. Without the use of wheeled carts (which pose their own set of unique restrictions) the assumption that all data are collected at a common height above the ground is routinely violated. Differences in sensor height between adjacent lines cause systematic and pseudo-random distortions in the gridded data which are not based on geophysical changes. The resulting anomalies are easily misinterpreted, or require filters which reduce the reliability of inversion routines. Field efforts to collect data of the quality required for adequate inversion are painstakingly conducted to achieve a measure of uniformity. The time, effort, and training required by these efforts have seldom been translated into cost-effective project implementation.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 2004
- Accession Number
- ADA438458
Entities
People
- T. J. Gamey
Organizations
- Oak Ridge National Laboratory