Accession Number:

ADA533143

Title:

Underwater Threat Neutralization: Swimmer Defense

Descriptive Note:

Annual rept.

Corporate Author:

PENNSYLVANIA STATE UNIV UNIVERSITY PARK

Personal Author(s):

Report Date:

2008-09-30

Pagination or Media Count:

23.0

Abstract:

The long term goal of this project is to demonstrate the efficacy of a swimmer deterrent system that focuses high intensity, low frequency sound at a sector of a harbor containing a swimmer. The system integrates swimmer location data from high frequency sonar detectors with control templates to drive a multiplicity of sound sources. Focusing is achieved by driving each of the sound sources with optimal magnitude and phase based on measured transfer functions between source and harbor sectors. These measurements are obtained from the acoustic calibration of the harbor.

Subject Categories:

  • Acoustic Detection and Detectors

Distribution Statement:

APPROVED FOR PUBLIC RELEASE