Ambient Vertical Directional Spectra at a TOTO Near-Reef Site
Abstract
This report documents the data processing techniques and the results of the initial deployment of a wideband (40 to 4000 Hertzs) vertical acoustic antenna system in the Tongue of the Ocean, The Bahamas, at a site adjacent to the Andros Island eastern escarpment. The instrumentation system consisted of seven octavely nested four-wavelength acoustic antennas covering the above frequency range and a Video Cassette recorder-based subsurface recording system that carried out a programmed sequence of recordings. This report documents a description of the experiment and its results. The purpose of the experiment was the initial field test of a deployable acoustic monitoring system (DAMS). The success of the experiment made available a data set that allowed the examination of the vertical spatial structure of the acoustic ambient of the location. While there were aspects of the data unique to the location, the bulk of the information appears to apply to the more-generic problem of characterizing the directional spectra resulting from a sea surface sound source structure. Underwater acoustics; Acoustic detection and detectors; Vibration isolation modules; Sensor system.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 1989
- Accession Number
- ADA219503
Entities
People
- R. M. Kennedy
- T. V. Goodnow
Organizations
- Naval Undersea Warfare Center