EMI Modeling for UXO Detection and Discrimination Underwater
Abstract
The primary objectives of Project MM-1632 were to 1) extend EMI forward models in an effort to understand how marine environments affect the performance of EMI sensors, 2) study EMI phenomena from highly conducting and permeable metallic objects in underwater environments, and 3) investigate the impact of the electromagnetic parameters of water (e.g., its conductivity or conductivity gradient) on the ability to discriminate UXO from non-UXO items. The Method of Auxiliary Sources was adapted for scenarios involving metallic objects placed in heterogeneous conducting media such as seawater. The contribution of the electric field was computed accurately using a surface impedance boundary condition that relates the tangential components of the electric and magnetic fields at frequencies such that the skin depth is small.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 2011
- Accession Number
- ADA578971
Entities
People
- Fridon Shubitidze