A new concept of ocean acoustic tomography
نویسندگان
چکیده
Lionel CROS, Cédric GERVAISE, Isabelle QUIDU, Luc JAULIN, Yann STEPHAN (1) Laboratoire Extraction et Exploitation de l’Information en Environnements Incertains EA3876, 2 rue François Verny, 29806 Brest, France. E-mail: [email protected], [email protected], [email protected], [email protected] (2) Centre Militaire d’Océanographie (CMO), 13 rue Chatellier, 29603 Brest Naval, France. E-mail: [email protected]
منابع مشابه
Evaluation of underwater acoustic propagation model (Ray theory) in a river using Fluvial Acoustic Tomography System
Underwater acoustics is widely used in many applications, such as oceanography, marine biology, hydrography, fishery, etc. Different models are introduced to simulate the underwater acoustic propagation in the oceans and the seas. In this study, the Ray Theory model is used to simulate the acoustic wave propagation in a shallow-freshwater river (Gono River) located in western part of Japan. The...
متن کاملOcean Acoustic Tomography
The idea of using the sound to monitor the changes in the marine environment motivated the oceanographers to develop the concept of ocean acoustic tomography. Starting from the early 80’s when the pioneers started to pave the way leading to the acoustical monitoring of the ocean change and coming to the beginning of the new millennium, several achievements in the field can be reported vindicati...
متن کاملExperimental Testing of the Blind Ocean Acoustic Tomography Concept
Acoustic focalization is a well known concept that aims at estimating source location through the adjustment of multiple environmental parameters. This paper uses the same concept for inverting water column sound speed in a blind fashion, where both source location and source emitted waveform are not known at the receiver that is Blind Ocean Acoustic Tomography (BOAT). The results obtained with...
متن کاملشناسایی جریانهای زیردریایی توسط امواج صوتی
Acoustic wave propagates properly in water, whilst most forms of electromagnetic waves, particularly in salty and dense sea water, are attenuated after a few tens or hundreds of meters so that it will be impossible to trace and detect them. This paper presents a special method for recognizing probable underwater currents, and reconstruction of their intensities, widths, and directions by usin...
متن کاملBlind Ocean Acoustic Tomography: Experimental Results on the Intifante’00 Data Set
Blind Ocean Acoustic Tomography (BOAT) is an ocean remote exploration concept similar to acoustic tomography but where both the emitted signal waveform and the source position are unknown. BOAT consists of a minimal environmental model of the area, a broadband matched-field processor and a genetic algorithm search procedure. This paper presents the results obtained with BOAT on part of the data...
متن کامل