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Harbor passive acoustic monitoring systems
Journal of the Acoustical Society of America, 2016The feasibility of detecting quiet moving targets (e.g., unmanned undersea vehicles) in harsh harbor environments by using passive acoustic bottom-mounted hydrophone arrays, combined with advanced signal processing detection systems tuned to the target’s radiated noise signature characteristics is presented.
Philip Abbot +3 more
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Standard for acoustic metadata for passive acoustic monitoring
The Journal of the Acoustical Society of America, 2019Passive acoustic monitoring often relies on data collected with various instrumentation, by multiple research groups in different locations, under diverse conditions, and with a variety of data analysis methods. To make the output comparable and to preserve data for long time-series analysis, metadata needs to be reported in a standardized way.
Simone Baumann-Pickering, Marie A. Roch
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Passive Acoustic Monitoring of Surface Vessel Activity
Volume 4: Ocean Engineering; Ocean Renewable Energy; Ocean Space Utilization, Parts A and B, 2009Monitoring human activity in remote marine areas is a challenging problem to which acoustic methods present a promising solution. This paper develops and demonstrates automated passive acoustic methods to estimate ranges to surface vessels using a single seafloor-mounted hydrophone.
Eva-Marie Nosal, Miloslav Nosal
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Passive acoustic monitoring using random matrix theory
2012 IEEE Statistical Signal Processing Workshop (SSP), 2012Cross-correlating ocean noise is a potential alternative to using active sources to monitor and study ocean environments. However, directional sources in the medium (usually ships) often introduce a bias in the cross-correlations, making the travel time estimates unreliable. Here, we use recent results in random matrix theory for the eigenvalue density
Ravi Menon +2 more
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Using passive acoustics for monitoring seagrass beds
OCEANS 2016 MTS/IEEE Monterey, 2016This paper discusses the ambient noise acquired during the period of one week, from May 8 to 15, 2013 over a Posidonia oceanica bed in the Bay of la Revellata, Calvi, Corsica. The acoustic receivers were moored at 3 locations with water depth ranging from 2 to 20 m. Simultaneously with acoustic measurements, the dissolved O2 was measured by an array of
P. Felisberto +4 more
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The Journal of the Acoustical Society of America, 2014
Acoustic observation can complement visual observation to more effectively monitor occurrence and distribution of marine mammals. For effective acoustic censuses, calibration methods must be determined by joint visual and acoustic studies. Research is still needed in the field of acoustic species identification, particularly for smaller odontocetes ...
Azzolin Marta +8 more
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Acoustic observation can complement visual observation to more effectively monitor occurrence and distribution of marine mammals. For effective acoustic censuses, calibration methods must be determined by joint visual and acoustic studies. Research is still needed in the field of acoustic species identification, particularly for smaller odontocetes ...
Azzolin Marta +8 more
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Marine mammal observer and passive acoustic monitoring handbook
Bioacoustics, 2015The Marine Mammal Observer and Passive Acoustic Monitoring Handbook is the self-proclaimed “ultimate instruction manual for mitigation measures to minimize man-made acoustical and physical disturba...
Victoria L.G. Todd +3 more
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Beta Testing of Persistent Passive Acoustic Monitors
2010Abstract : Long-endurance oceanographic sampling platforms such as gliders and profiling floats provide a new opportunity for acquiring acoustic signals from marine animals with immediate applications in conservation and mitigation. Our objective is to produce a reliable system for persistent passive acoustic monitoring of marine animals.
Tom Hurst +3 more
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Passive Acoustic Monitoring of Cetaceans
2011Passive acoustic monitoring is increasingly used by the scientific community to study, survey and census marine mammals, especially cetaceans, many of which are easier to hear than to see. PAM is also used to support efforts to mitigate potential negative effects of human activities such as ship traffic, military and civilian sonar and offshore ...
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Passive acoustics process to monitor fluidized bed level
The Journal of the Acoustical Society of America, 1991A method for the non-intrusive determination of the bed level in two phase fluid bed reactor using wall vibrations of the reactor.
George D. Cody +2 more
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