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Accession Number ADA571178
Title Experimentally-Based Ocean Acoustic Propagation and Coherence Studies.
Publication Date 2012
Media Count 15p
Personal Author T. F. Duda
Abstract The long-term goal is to better understand fluctuating sound propagation in two distinct ocean acoustic regimes: Stratified shallow water, where sound is highly bottom interacting, and the temperate deep-ocean sound channel. Acoustic field fluctuations have time scales varying from less than a minute to hours, and horizontal spatial scales from tens of meters to kilometers, comparable to processing time scales and system spatial scales, and thus impact exploitation of underwater sound. With proper understanding, reliable predictions of temporal and spatial variability of received underwater sound may be possible, thus improving processing and handling of signals of interest. Processing could include remediation of signal degradation and exploitation of available sonic information.
Keywords Acoustic channels
Acoustic fields
Acoustic signals
Coherence
Deep oceans
Degradation
Forward scattering
Horizontal orientation
Mean
Measuring instruments
Oceans
Propagation
Shallow depth
Shallow water
Sound transmission
Stratification
Temperate regions
Test and evaluation
Underwater sound

 
Source Agency Non Paid ADAS
NTIS Subject Category 48G - Hydrology & Limnology
46A - Acoustics
Corporate Author Woods Hole Oceanographic Institution, MA. Dept. of Applied Ocean Physics and Engineering.
Document Type Technical report
Title Note N/A
NTIS Issue Number 1315
Contract Number N/A

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