Title :
Measuring the vertical directional spectra caused by sea surface sound
Author :
Kennedy, Robert M. ; Goodnow, Teri V.
Author_Institution :
US Naval Underwater Syst. Center, West Palm Beach, FL, USA
fDate :
10/1/1990 12:00:00 AM
Abstract :
The results of the initial deployment of a wideband (40-4000 Hz) vertical acoustic antenna system in the Tongue of the Ocean, the Bahamas are discussed. The instrumentation system consisted of seven octavely nested, four-wavelength linear apertures covering the above frequency range, and a VCR-based subsurface recording system that carried out a programmed sequence of recordings. The objective of the measurement system is the development of a database of directional spectra obtained in an acoustically isolated area where the ambient is principally controlled by the local (observable) sea-surface conditions. The purpose of the database is to identify a model of the space-time statistics of the acoustic ambient caused by sea-surface sound
Keywords :
acoustic noise measurement; oceanographic equipment; oceanographic regions; underwater sound; 40 to 4000 Hz; Bahamas; Tongue of the Ocean; VCR-based subsurface recording; acoustics; equipment; four-wavelength linear apertures; instrumentation; measurement; ocean; sea surface sound; underwater sound; vertical acoustic antenna system; vertical directional spectra; Acoustic measurements; Antenna measurements; Apertures; Broadband antennas; Databases; Instruments; Oceans; Sea measurements; Sea surface; Tongue;
Journal_Title :
Oceanic Engineering, IEEE Journal of
