Underwater Acoustic Communications: Long-Term Test of Turbo Equalization in Shallow Water

Author
Otnes, Roald Wilhelm
Eggen, Trym Haakon
Date Issued
2008
Keywords
Akustisk telekommunikasjon
Telemetri
Undervannskommunikasjon
Permalink
http://hdl.handle.net/20.500.12242/822
https://publications.ffi.no/123456789/822
DOI
10.1109/JOE.2008.925893
Collection
Articles
Description
Otnes, Roald Wilhelm; Eggen, Trym Haakon. Underwater Acoustic Communications: Long-Term Test of Turbo Equalization in Shallow Water. IEEE Journal of Oceanic Engineering 2008 ;Volum 33.(3) s. 321-334
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Abstract
Acoustic telemetry sea trials lasting for three months with experiment periods of 7 h have been carried out, using a turbo receiver. The communication channel is shallow; the depth is approximately 10 m, and the range is 850 m, showing variable multipath. The wind speed and the sound-speed profile (SSP) are measured during sonic of the experiments. The results show reliable communication over the entire period and performance improvement of the turbo receiver compared to a decision feedback equalizer (DFE) used as reference receiver. The noise in the experiment data suggests significant deviations from the Gaussian assumption, and analysis of turbo receiver performance under heavy-tailed noise is presented.
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