Three-Dimensional Steerable Magnetic Field (3DSMF)Sensor System for Classification of Buried Metal Targets
Abstract
The Johns Hopkins University/Applied Physics Laboratory (JHU/APL) has developed a novel approach to metal target classification via an advanced Three-Dimensional Steerable Magnetic Field (3DSMF) Sensor System. The 3DSMF is a time-domain (TD) electromagnetic induction (EMI) sensor configured with a three-axis magnetic field generator and three receivers that measures the multiple components of buried unexploded ordnance (UXO) magnetic polarizability tensors (MPT). This final report summarizes work completed throughout the project. The results from the current year show promise of confirming the 3DSMF identification concept when using libraries of target time decay constants. The spatial orientation of targets was determined at different depths using library constants which had been derived from calibration measurements made with that target at a single depth. There is also evidence that the orientation of a target can be determined even if the target is off-center of the antenna. Further data collection and analysis would characterize the effectiveness of the 3DSMF Sensor System in discriminating between different targets.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 2006
- Accession Number
- ADA469950
Entities
People
- Carl V. Nelson
- Deborah P. Mendat
- James D. Beaty
- Joseph N. Craig
- Liane C. Ramac-thomas
- Toan B. Huynh
Organizations
- Johns Hopkins University