title: Aspect-dependent radiated noise analysis of an underway autonomous underwater vehicle.
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.
authors.affiliation: 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
authors.forename: John
authors.initials: J
authors.lastname: Gebbie
authors.forename: Martin
authors.initials: M
authors.lastname: Siderius
authors.forename: John S
authors.initials: JS
authors.lastname: Allen
mesh_terms: D000162:Acoustics / Q000295:instrumentation; D000465:Algorithms; D004867:Equipment Design; D008962:Models, Theoretical; D009038:Motion; D009624:Noise, Transportation; D012815:Signal Processing, Computer-Assisted / Q000295:instrumentation; D013018:Sound Spectrography; D013997:Time Factors; D014159:Transducers; D014867:Water
chemical_list: D014867:Water