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Analysis of the channel time response from modal filtering and array beamforming: application to ocean tomography

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1 Author(s)
Le Bras, P. ; Lab. d''Acoust. Sous-Marine, IFREMER, Brest, France

In the field of ocean acoustic tomography the author proposes an array processing for analysing the time domain response due to para-axial propagation along the channel axis. The author uses a modal description of the propagation. Broadband modal filtering is applied in order to isolate each modal contribution to the time response. Then, from a time-frequency analysis of filtering outputs the author recovers the dispersion curve of the filtered mode

Published in:

OCEANS '94. 'Oceans Engineering for Today's Technology and Tomorrow's Preservation.' Proceedings  (Volume:2 )

Date of Conference:

13-16 Sep 1994