A digital signal processing fish tracker, investigation and design

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SubjectDSP; Digital Signal Processing; ultrasonic; fish tracker; underwater positioning
AbstractThis thesis describes an investigation into the design of a digital signal processing ultrasonic fish tracker. This work was initiated to overcome problems with an analog system presently used at Memorial University to track individual cod. Consisting of a local oscillator and several superheterodyne receivers, the analog system now works intermittently and gives unreliable results. A study into a more compact receiver design based on recent technological advancements was then commenced. The new receiver will connect to the exising four hydrophones, interface through a PC ISA bus, fit on a single PC proto-board, and track three frequencies simultaneously from each of the four hydrophones. Position resolution under 1m is achievable, over a 500 m range.
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PublisherMemorial University of Newfoundland, Faculty of Engineering and Applied Science
AffiliationNRC Institute for Ocean Technology; National Research Council Canada
Peer reviewedNo
NRC number5692
NPARC number8895202
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Record identifierc3eae592-4cc6-48eb-b958-1a3b6cd783ab
Record created2009-04-22
Record modified2016-05-09
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