EMI Array for Cued UXO Discrimination
Abstract
UXO detection and remediation is a high priority triservice requirement. As the Defense Science Board recently wrote, Today s UXO cleanup problem is massive in scale with some 10 million acres of land involved. Estimated cleanup costs are uncertain but are clearly tens of billions of dollars. This cost is driven by the digging of holes in which no UXOs are present. The instruments used to detect UXOs (generally located underground) produce many false alarms i.e., detections from scrap metal or other foreign or natural objects for every detection of a real unexploded munition found. [1] There is general agreement that the best solution to the false alarm problem involves the use of EMI sensors which, in principle, allow the extraction of target shape parameters in addition to a size and depth estimate. We and others have fielded systems with either time-domain or frequency-domain EMI sensors with the goal of extracting reliable target shape parameters and thus improving the classification capability of our surveys. In practice, the classification ability of these sensors has been limited by signal-to-noise limitations. Three of the largest noise terms are inherent sensor noise, motion-induced noise, and sensor location uncertainty.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 01, 2010
- Accession Number
- ADA578949
Entities
Organizations
- United States Naval Research Laboratory