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Presentation of a real-time high data rate acoustic link based on a spatio-temporal blind equalization - The Trident acoustic system

Abstract : There is no doubt about the growing interest in underwater acoustic communications. Among all existing applications, the objective of the Groupe d'Etudes Sous-marines de l'Atlantique (GESMA) is to develop a sufficiently robust high data rate acoustic link, named TRIDENT. For that purpose, different kinds of information (text, images....) could be periodically emitted through the acoustic channel.A real-time receiver, based on a spatio-temporal blind adaptive decision feedback equalizer, developed and patented by ENST Bretagne was designed to cope with all perturbations induced by such harsh channels. Some sea trials were realized on June 2002. The first results are clearly convincing since most of the 48 sequences of 5 minutes are successfully demodulated by the DSP in real-time. This acoustic system allows the transmission to data rate from 8 to 25 kbps in horizontal configuration.
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https://hal.archives-ouvertes.fr/hal-02347445
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Submitted on : Tuesday, November 5, 2019 - 11:07:57 AM
Last modification on : Wednesday, January 6, 2021 - 3:33:44 PM

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  • HAL Id : hal-02347445, version 1

Citation

Joël Trubuil, Thierry Le Gall, Joël Labat, Gérard Lapierre. Presentation of a real-time high data rate acoustic link based on a spatio-temporal blind equalization - The Trident acoustic system. OCEANS'02, Jun 2002, Washington, États-Unis. ⟨hal-02347445⟩

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