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Accession Number ADA571543
Title Acoustic Blind Deconvolution and Source Localization in Shallow Ocean Environments.
Publication Date Sep 2011
Media Count 7p
Personal Author D. R. Dowling
Abstract The overall long-term goal for this project is to develop engineering tools that are useful to the Navy as it operates in uncertain, partially known, or unknown ocean environments. During the last year, this project has focused on further determining the utility of a time-reversal-based technique for blind deconvolution of recorded sounds broadcast by a remote source with emphasis on determining if and how the results might be used for classification, localization, tracking, and/or identification of remote sources in poorly known or unknown multipath waveguide environments. The long term goals of this project are: (i) to determine the effectiveness of artificial time reversal (ATR) for the purposes of blind deconvolution in noisy unknown ocean sound channels, (ii) to effectively apply ATR to marine mammal sounds recorded in the ocean with vertical and/or horizontal arrays, and (iii) to utilize the ATR-estimated signals and ocean-sound-channel impulse responses to identify, localize, and/or track individual marine mammals (or other sound sources of interest).
Keywords Acoustic channels
Aquatic animals
Multipath transmission
Ocean environments
Sound generators
Vertical orientation

Source Agency Non Paid ADAS
NTIS Subject Category 47C - Physical & Chemical Oceanography
46A - Acoustics
Corporate Author Michigan Univ., Ann Arbor. Dept. of Mechanical Engineering.
Document Type Technical report
Title Note N/A
NTIS Issue Number 1316
Contract Number N00014-11-1-0047

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