Accession Number : ADA469952


Title :   A Unified Approach to UXO Discrimination Using the Method of Auxiliary Sources


Descriptive Note : Final rept.


Corporate Author : SKY RESEARCH ASHLAND OR


Personal Author(s) : Pasion, Leonard R ; Song, Lin-Ping ; Lhomme, Nicolas ; Shubitidze, Fridon ; Oldenburg, Douglas W


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a469952.pdf


Report Date : 12 Oct 2006


Pagination or Media Count : 103


Abstract : The research described in this report was conducted in support of Strategic Environmental Research and Development Program (SERDP) SEED Broad Agency Announcement (BAA), Statement of Need UXSEED-05-02, Innovative Approaches to Unexploded Ordnance (UXO) Cleanup. A SERDP SEED research and development project UX-1446 entitled A Unified Approach to UXO Discrimination Using the Method of Auxiliary Sources was proposed in response to the above BAA. The main emphasis of this research was to explore the fundamental characteristics of the Surface Magnetic Charge (SMC) and Standard Excitation Approach (SEA) methods when applied to UXO discrimination problems. Both methods were derived from the Method of Auxiliary Sources (MAS), and thus represent the secondary magnetic fields from a compact metallic target with a surface of magnetic charge. The SEA and SMC are relatively new modeling techniques for UXO discrimination. Therefore, we investigated some fundamental, as well as practical, characteristics of the forward model. These include the accuracy with which the methods can model sensor data, the speed to carry out the forward modeling, and the type of discrimination algorithms amenable to each of the forward modeling methods. For the SEA, we wanted to determine the ease with which the sources can be derived for a particular target. For the SMC, we wanted to determine if the surface magnetic charge distribution is a good discriminant, and, if so, what algorithm is required to obtain a stable estimate of the magnetic charge.


Descriptors :   *UNEXPLODED AMMUNITION , *ORDNANCE LOCATORS , ELECTROMAGNETIC INDUCTION , NUMERICAL METHODS AND PROCEDURES , TIME DOMAIN , FREQUENCY DOMAIN


Subject Categories : Active & Passive Radar Detection & Equipment
      Ammunition and Explosives
      Electricity and Magnetism
      Numerical Mathematics
      Operations Research


Distribution Statement : APPROVED FOR PUBLIC RELEASE