The authors acknowledge support for this research by the Office of Naval Research for the development of the beamforming and propagation methodology, as well as the fellowship of J.G. We thank the Department of Homeland Security for sponsoring J.S.A., and for the experimental deployment under Grant Award No. 2008-ST-061-ML0001.
Journal of the Acoustical Society of America Express Letters
Noise, Signal processing, Acoustics
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.
Gebbie, J., Siderius, M., & Allen, J. (2012). Aspect-dependent radiated noise analysis of an underway autonomous underwater vehicle. The Journal of The Acoustical Society of America, 132(5), EL351-EL357.