Effects of Target Corrosion/Bio-Fouling on EMI and Structural Acoustic Signatures in Underwater Environments - Acoustic Component
Abstract
This reports on the results of an experimental study focused on generating a carefully controlled data base determining the effects of corrosion and bio-fouling on a UXO's underwater echo characteristics, i.e. on "acoustic color" from which classification features and images are generated. The detailed frequency/angle structure in the measured acoustic color map provides effective "fingerprinting" features for the classification algorithm. Here we measure these color maps for two UXO - a 5" rocket and a 155mm shell both filled with an epoxy resin - and then repeat the measurements after the targets have experienced bio-fouling and then corrosion. Further, we attempt to determine how the various structural acoustic mechanisms which lead to these features are affected by the bio-fouling or corrosion.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 2017
- Accession Number
- AD1044127
Entities
People
- A. Sarkissian
- Brian H. Houston
- J. A. Bucaro
- M. Saniga
Organizations
- United States Naval Research Laboratory