Multi-channel broadband receive array for downward looking sonar applications

The recent proliferation in interest for increased detection and classification probabilities of submerged objects in maritime environments has established a need for broadband underwater acoustic receivers. A multi-channel sonar receive array composed of 16 piezoelectric ceramic elements was design...

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Bibliographic Details
Published in:The Journal of the Acoustical Society of America 2019-03, Vol.145 (3), p.1864-1864
Main Authors: Todd, Bryan D., Kennedy, Jermaine L., Malphurs, David E.
Format: Article
Language:English
Online Access:Get full text
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Summary:The recent proliferation in interest for increased detection and classification probabilities of submerged objects in maritime environments has established a need for broadband underwater acoustic receivers. A multi-channel sonar receive array composed of 16 piezoelectric ceramic elements was designed, fabricated, and developed using rapid prototyping techniques including a combination of three-dimensional printed materials, molding, and casting techniques to support various modalities of underwater sonar sensing applications. Four sets of the receive elements, consisting of four individual elements per set, were mounted using disparate methods. In-water acoustical property characterizations over a broad operating frequency range were examined and analyzed. The aforementioned results fostered identification of key array design characteristics for super-critical grazing angle downward looking sonar (DLS) systems.
ISSN:0001-4966
1520-8524
DOI:10.1121/1.5101735