Aspect-dependent radiated noise analysis of an underway autonomous underwater vehicle.

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Abstract

This paper presents an analysis of the acoustic emissions emitted by an underway REMUS-100 autonomous underwater vehicle (AUV) that were obtained near Honolulu Harbor, HI using a fixed, bottom-mounted horizontal line array (HLA). Spectral analysis, beamforming, and cross-correlation facilitate identification of independent sources of noise originating from the AUV. Fusion of navigational records from the AUV with acoustic data from the HLA allows for an aspect-dependent presentation of calculated source levels of the strongest propulsion tone.

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Journal

Journal ID (iso-abbrev): J Acoust Soc Am

Title: The Journal of the Acoustical Society of America

Publisher: Acoustical Society of America (ASA)

ISSN (Electronic): 1520-8524

ISSN (Print): 0001-4966

Publication date (Electronic): Nov 2012

Volume: 132

Issue: 5

Affiliations

[1 ] Northwest Electromagnetics and Acoustics Research Laboratory, Department of Electrical and Computer Engineering, Portland State University, 1900 SW 4th Avenue, Suite 160, Portland, Oregon 97201, USA. jgebbie@ece.pdx.edu

Article

DOI: 10.1121/1.4754419

PubMed ID: 23145694

SO-VID: 7abf6fa4-202c-4b15-a7ce-6bb76869b1c2

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