Broadband acoustic scattering measurements of underwater unexploded ordnance (UXO).

Published

Journal Article

In order to evaluate the potential for detection and identification of underwater unexploded ordnance (UXO) by exploiting their structural acoustic response, we carried out broadband monostatic scattering measurements over a full 360 degrees on UXO's (two mortar rounds, an artillery shell, and a rocket warhead) and false targets (a cinder block and a large rock). The measurement band, 1-140 kHz, includes a low frequency structural acoustics region in which the wavelengths are comparable to or larger than the target characteristic dimensions. In general, there are aspects that provide relatively high target strength levels ( approximately -10 to -15 dB), and from our experience the targets should be detectable in this structural acoustics band in most acoustic environments. The rigid body scattering was also calculated for one UXO in order to highlight the measured scattering features involving elastic responses. The broadband scattering data should be able to support feature-based separation of UXO versus false targets and identification of various classes of UXO as well.

Full Text

Duke Authors

Cited Authors

  • Bucaro, JA; Houston, BH; Saniga, M; Dragonette, LR; Yoder, T; Dey, S; Kraus, L; Carin, L

Published Date

  • February 2008

Published In

Volume / Issue

  • 123 / 2

Start / End Page

  • 738 - 746

PubMed ID

  • 18247878

Pubmed Central ID

  • 18247878

Electronic International Standard Serial Number (EISSN)

  • 1520-8524

International Standard Serial Number (ISSN)

  • 0001-4966

Digital Object Identifier (DOI)

  • 10.1121/1.2821794

Language

  • eng