Tracking Fishes With a Microwatt Acoustical Receiver —An Archival Tag Development

Fischer, G.; Lee, Sangmok; Obara, M.; Kasturi, P.; Rossby, H. Thomas; Recksiek, C.W.

doi:10.1109/joe.2006.880376

Cited by 11 publications

(5 citation statements)

References 16 publications

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“…In this experiment, source and receiver were kept below the surface mixed layer at ~40 and 30m, respectively, on the New England shelf south of Nantucket. At a distance of 70km from the acoustic source, the records revealed a robust in-band signal-tonoise ratio of approximately 6dB [10].…”

Section: Field Test Resultsmentioning

confidence: 99%

An Acoustic Archival Tag for Long-Range Tracking Of Small Fishes

Fischer¹

2018

OFOAJ

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Section: Field Test Resultsmentioning

confidence: 99%

An Acoustic Archival Tag for Long-Range Tracking Of Small Fishes

Fischer¹

2018

OFOAJ

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“…This renders the tag less vulnerable to Doppler induced frequency shifts and reduces arrival time or distance errors cause by the relative target motion by a factor of 5. In addition, the signal center frequency has been slightly increased from 260 to 262 Hz so that a 256 Hz frequency modulation can shift the signal center to 6 Hz (Fischer et al, 2006). This allows the final 1-bit digitizer to be clocked at a much lower rate of 32 Hz.…”

Section: B Acoustic Receivermentioning

confidence: 99%

A Miniature Acoustic Device for Tracking Small Marine Animals or Submerged Drifters

Fischer

Rossby

Moonan

2017

Journal of Atmospheric and Oceanic Technology

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This paper presents an acoustic archival tag capable of tracking small marine animals. It is also a technology that can be ported to other platforms such as next generation acoustic and Argo floats as well as gliders. Tracking is achieved by standard RAFOS triangulation using the arrival times of unique sound signals emitted by moored sources. At the core of the tag is a custom microchip, which controls all system operations. It incorporates the critical acoustic arrival time detector, a thermal sensor and a pressure sensor interface. All electronic components are housed inside a cylindrical hydrophone of 25.4 mm length and 10.7 mm diameter. The collected data is archived in nonvolatile memory chips with a total capacity of 4 Mb, sufficient storage to record position, temperature and pressure on an hourly basis for two years. The tag consumes 4-5 W in standby mode and between 60-90 W while the sound arrival time detector is in operation. The power is provided by two button cell silver-oxide batteries, which enable an active tag lifetime of approximately two years.

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“…A radically different form of fish-tracking is being considered: by tagging fish with passive acoustic receivers, which can then receive periodic signal transmissions from one or more sources. The design of the receiver is presented in [24].…”

Section: B Use Of Acoustic Instrumentsmentioning

confidence: 99%

Underwater acoustic technology: Review of some recent developments

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2008

Oceans 2008

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It is a truism to say that the relationship of science and technology is push-pull. This is illustrated regularly throughout the fields of ocean engineering and ocean science. It underlies this review for the particular case of underwater acoustics over the past decade. Developments are summarized apropos of the interests of the OES Technology Committee on Underwater Acoustics: (1) design, fabrication, and testing of acoustic instrumentation such as transducers, transducer arrays, hydrophones, sound sources, transponders, and recording systems;(2) use of acoustic instrumentation in the form of active and passive sonar systems for such applications as bottom mapping, underwater imaging, ocean measurement, observation and quantification of biological organisms, target surveillance and tracking; (3) modeling and prediction of ocean acoustic parameters, such as multipath arrival structure, scattering, reverberation, and noise, which influence sonar system performance.Related topics such as underwater acoustic communication, navigation, and positioning; sonar image processing; and inference of ocean acoustic parameters are addressed in separate, independent reviews. This review is a contribution to the 40th anniversary celebration of the OES.I.

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Tracking Fishes With a Microwatt Acoustical Receiver —An Archival Tag Development

Cited by 11 publications

References 16 publications

An Acoustic Archival Tag for Long-Range Tracking Of Small Fishes

An Acoustic Archival Tag for Long-Range Tracking Of Small Fishes

A Miniature Acoustic Device for Tracking Small Marine Animals or Submerged Drifters

Underwater acoustic technology: Review of some recent developments

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