Beaked whale (Mesoplodon densirostris) passive acoustic detection in increasing ambient noise

2011 ◽  
Vol 129 (2) ◽  
pp. 662-669 ◽  
Author(s):  
Jessica Ward ◽  
Susan Jarvis ◽  
David Moretti ◽  
Ronald Morrissey ◽  
Nancy DiMarzio ◽  
...  
Keyword(s):  
Ambient Noise ◽  
Acoustic Detection ◽  
Beaked Whale ◽  
Passive Acoustic

Comparison between visual and passive acoustic detection of finless porpoises in the Yangtze River, China

2001 ◽  
Vol 109 (4) ◽  
pp. 1723-1727 ◽  
Author(s):  
Tomonari Akamatsu ◽  
Ding Wang ◽  
Kexiong Wang ◽  
Zhou Wei
Keyword(s):  
Yangtze River ◽  
Acoustic Detection ◽  
The Yangtze River ◽  
Passive Acoustic

Fish Bioacoustics and Behavior: Passive Acoustic Detection and the Application of a Closed-Circuit Rebreather for Field Study

2001 ◽  
Vol 35 (2) ◽  
pp. 19-28 ◽  
Author(s):  
Phillip S. Lobel
Keyword(s):  
Behavioral Ecology ◽  
Daily Basis ◽  
Open Circuit ◽  
Acoustic Detection ◽  
Ecological Processes ◽  
Detection Technology ◽  
Scientific Goal ◽  
Species Specific ◽  
Passive Acoustic ◽  
And Behavior

The simple thesis of this paper is that using rebreathers to study fish behavioral ecology, especially bioacoustics, is well worth the expense and additional training required. The scientific goal of my bioacoustic research is to determine which fishes produce species-specific sound patterns exclusively with explicit acts of courtship and mating. This provides scientific insight into evolutionary and ecological processes and also provides data necessary to develop the passive acoustic detection technology for monitoring fish reproduction. When used on a daily basis, rebreathers, in my experience, are economical and as practical as open circuit scuba. This is based both on the costs of diving as well as the efficiency of gathering useful data. The use of open circuit SCUBA while conducting acoustic recordings results in a loss of at least 40% of the data due to the bubble noise from a divers breathing. Rebreathers also provide extended bottom time, especially in shallow water, which enhances a diver's ability to observe fish and gather acoustic-behavioral data.

scholarly journals Automatic Acoustic Target Detecting and Tracking on the Azimuth Recording Diagram with Image Processing Methods

Sensors ◽  
2019 ◽  
Vol 19 (24) ◽  
pp. 5391
Author(s):  
Fan Yin ◽  
Chao Li ◽  
Haibin Wang ◽  
Fan Yang
Keyword(s):  
Image Processing ◽  
Real Time ◽  
Target Detection ◽  
Ambient Noise ◽  
Arrival Direction ◽  
Processing Methods ◽  
Acoustic Target ◽  
Real Time Tracking ◽  
Passive Acoustic ◽  
Target Detecting

Passive acoustic target detection has been a hot research topic for a few decades. Azimuth recording diagram is one of the most promising techniques to estimate the arrival direction of the interested signal by visualizing the sound wave information. However, this method is challenged by the random ambient noise, resulting in low reliability and short effective distance. This paper presents a real-time postprocessing framework for passive acoustic target detection modalities by using a sonar array, in which image processing methods are used to automate the target detecting and tracking on the azimuth recording diagram. The simulation results demonstrate that the proposed approach can provide a higher reliability compared with the conventional ones, and is suitable for the constraints of real-time tracking.

Passive acoustic detection of closed-circuit underwater breathing apparatus in an operational port environment

2012 ◽  
Vol 132 (4) ◽  
pp. EL310-EL316 ◽  
Author(s):  
L. Fillinger ◽  
A. J. Hunter ◽  
M. Zampolli ◽  
M. C. Clarijs
Keyword(s):  
Closed Circuit ◽  
Acoustic Detection ◽  
Breathing Apparatus ◽  
Passive Acoustic

Passive Acoustic Detection and Monitoring of Schools of Herring

2008 ◽  
Vol 123 (5) ◽  
pp. 3621-3621
Author(s):  
Thomas R. Hahn ◽  
Gary L. Thomas
Keyword(s):  
Acoustic Detection ◽  
Passive Acoustic

Passive acoustic and seismic tomography with ocean ambient noise

2005 ◽  
Vol 118 (3) ◽  
pp. 1845-1845
Author(s):  
Peter Gerstoft ◽  
Karim Sabra ◽  
Phillippe Roux ◽  
W. A. Kuperman ◽  
William S. Hodgkiss
Keyword(s):  
Seismic Tomography ◽  
Ambient Noise ◽  
Passive Acoustic

Passive acoustic thermometry of the deep water sound channel using ambient noise

2013 ◽  
Vol 134 (5) ◽  
pp. 3983-3983
Author(s):  
Katherine F. Woolfe ◽  
Shane Lani ◽  
Karim G. Sabra
Keyword(s):  
Deep Water ◽  
Ambient Noise ◽  
Sound Channel ◽  
Acoustic Thermometry ◽  
Passive Acoustic

Passive acoustic detection of surface ships at ranges exceeding 100 kilometers and mechanisms for ship noise generation

2018 ◽  
Vol 144 (3) ◽  
pp. 1943-1943
Author(s):  
Matthew E. Schinault ◽  
Heriberto A. Garcia ◽  
Chenyang Zhu ◽  
Anna Kaplan ◽  
Purnima Ratilal
Keyword(s):  
Noise Generation ◽  
Acoustic Detection ◽  
Passive Acoustic
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