Title :
Design of a time reversal mirror for medium scale experiments
Author :
Folégot, Thomas ; Billand, Philippe ; Tauvry, Sébastien ; Hibral, Sidonie ; Bernière, Lothar ; De Rosny, Julien ; Clorennec, Dominique ; Minonzio, Jean-Gabriel ; Prada, Claire ; Fink, Mathias ; Célestin, Bruno
Author_Institution :
ATLANTIDE, Brest, France
Abstract :
A rigid 24-element acoustic source-receiver array has been jointly developed by ATLANTIDE, LOA and ECA. The array, based on COTS equipment, is specified to be easily deployed from a pier and to allow simple and low cost at sea experiments with water depths up to 20 meters. Dedicated to underwater detection and focusing applications in very shallow water, the instrumentation can be deployed in various acoustic time reversal configurations: detection of drifting objects, acoustic barrier, communication with AUV, etc. The system performance based on the time reversal concept and more particularly on the Time Reversal Operator Decomposition method (D.O.R.T.) is currently being estimated by experiments in a pool and in the bay of Brest.
Keywords :
acoustic arrays; mirrors; object detection; oceanographic equipment; oceanographic regions; underwater acoustic communication; underwater sound; 20 m; AUV; COTS equipment; acoustic barrier; acoustic source-receiver array; acoustic time reversal configurations; bay of Brest; drifting objects detection; medium scale experiments; sea experiments; shallow water; time reversal concept; time reversal mirror; time reversal operator decomposition method; underwater communication; underwater detection; underwater focusing; Acoustic applications; Acoustic arrays; Acoustic signal detection; Costs; Instruments; Mirrors; Object detection; Underwater acoustics; Underwater communication; Underwater tracking;
Conference_Titel :
Oceans 2005 - Europe
Conference_Location :
Brest, France
Print_ISBN :
0-7803-9103-9
DOI :
10.1109/OCEANSE.2005.1513231
