47-channel burst-mode recording hydrophone system enabling measurements of the dynamic echolocation behavior of free-swimming dolphins.

Summary, in English

Detailed echolocation behavior studies on free-swimming dolphins require a measurement system that incorporates multiple hydrophones (often >16). However, the high data flow rate of previous systems has limited their usefulness since only minute long recordings have been manageable. To address this problem, this report describes a 47-channel burst-mode recording hydrophone system that enables highly resolved full beamwidth measurements on multiple free-swimming dolphins during prolonged recording periods. The system facilitates a wide range of biosonar studies since it eliminates the need to restrict the movement of animals in order to study the fine details of their sonar beams.

• Author: Josefin Starkhammar; Mats Amundin; Johan Nilsson; Tomas Jansson; Stan A Kuczaj; Monica Almqvist; Hans W Persson
• Department/s: Department of Biomedical Engineering
• Publishing year: 2009
• Language: English
• Pages: 959-962
• Publication/Series: Journal of the Acoustical Society of America
• Volume: 126
• Issue: 3
• Links: http://dx.doi.org/10.1121/1.3184536
• Document type: Journal article
• Publisher: American Institute of Physics (AIP)
• Topic: Medical Engineering
• Status: Published
• ISBN/ISSN/Other: ISSN: 1520-8524