Underwater Acoustic Telemetry
نویسندگان
چکیده
منابع مشابه
A fast and accurate decoder for underwater acoustic telemetry.
The Juvenile Salmon Acoustic Telemetry System, developed by the U.S. Army Corps of Engineers, Portland District, has been used to monitor the survival of juvenile salmonids passing through hydroelectric facilities in the Federal Columbia River Power System. Cabled hydrophone arrays deployed at dams receive coded transmissions sent from acoustic transmitters implanted in fish. The signals' time ...
متن کاملTransarctic acoustic telemetry.
On April 9 and 13, 1999, two Arctic Climate Observation Using Underwater Sound tomography signals were transmitted from a 20.5-Hz acoustic source moored at the Franz Victoria Strait to an eight-element, 525-m vertical array at ice camp APLIS in the Chukchi Sea at a distance of ∼2720 km. The transmitted signal was a 20-min long, 255-digit m-sequence that can be treated as a binary-phase shift-ke...
متن کاملDevelopment of a simple underwater acoustic channel simulator for analysis and prediction of horizontal data telemetry
This study seeks to identify the various mechanisms affecting the performance of horizontal underwater acoustic communication. In order to better understand the impact of oceanographic parameters on acoustic transmission, a simple channel simulator was developed. This was based on the Bellhop propagation model, utilising Gaussian beam tracing. Using a simulated underwater environment and given ...
متن کاملAdaptive Underwater Acoustic Communications
Underwater wireless networks consist of mobile and static nodes, which usually communicate using the acoustic channel since radio transmissions attenuate rapidly and optical communication is only suitable for short distances. The underwater acoustic channel is plagued with issues of high transmission power requirements, rapidly changing channel characteristics, multi-path echoes, possible high ...
متن کاملUnderwater Acoustic Communication
Keywords: acousticc communicationss coherentt equalizationn channel estimationn multi-pathh diversity c o m biningg beamformingg multiuser detectionn underwater data networkss sparse equalizationn blind equalizationn multirate adaptive lteringg cyclostationary statistics .
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ژورنال
عنوان ژورنال: The Journal of the Acoustical Society of America
سال: 1961
ISSN: 0001-4966
DOI: 10.1121/1.1936753