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Passive acoustic detection and estimation of the number of sources using compact arrays
Ildar R Urazghildiiev1, David E Hannay2
1JASCO Applied Sciences (USA) Incorporated, Silver Spring, Maryland 20910, USA.
Abstract:
The problem of estimating the number of sound-producing sources detected using a compact array of hydrophones is addressed. Closed form expressions representing the techniques of automatic detection and estimation of the number of callers are given. Their performance is evaluated on a year-long dataset (1 October 2015-6 October 2016) containing humpback whale and killer whale calls collected in the Strait of Georgia, near Vancouver, British Columbia. Manual verification of the automatic detections produced by the approach required ∼40 h.
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