Acoustic backscatter at very high frequencies from rough seabeds
Acoustic backscatter at very high frequencies from rough seabeds
Acoustic backscatter data were gathered from a variety of seabed types, both in the laboratory tank and in coastal waters. Data were gathered from sandy sediments in the tank, with a variety of characterized rough surfaces, using narrow-band pulses at frequencies between 100 and 950 kHz. Wideband data gathered at sea were obtained at frequencies between 80 and 650 kHz. Data gathered at sea from the Acoustic Range at QinetiQ Bincleaves included backscatter from the natural sandy seabed, but also scatter from several artificial sediments (sand, gravel, and pebbles) placed in a rotator. The latter equipment allowed acoustic interrogation of the same patch of seabed from multiple angles. Experimental data are compared with fluid, poroelastic, and discrete scatterer models, with a view to recommendations for the modeling of seabed backscatter in the frequency band 100 kHz to 1 MHz.
p.2575
Brothers, R.
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Heald, G.J.
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Robb, G.
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Leighton, T.G.
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Dix, J.K.
efbb0b6e-7dfd-47e1-ae96-92412bd45628
October 2004
Brothers, R.
6331d686-0263-44b5-8e64-6723d0db965c
Heald, G.J.
413b7ad0-aeea-4af6-99c5-5c16c6f1a8cb
Robb, G.
0b83ba4c-4edc-44d2-af72-91ac7eeefa59
Leighton, T.G.
3e5262ce-1d7d-42eb-b013-fcc5c286bbae
Dix, J.K.
efbb0b6e-7dfd-47e1-ae96-92412bd45628
Brothers, R., Heald, G.J., Robb, G., Leighton, T.G. and Dix, J.K.
(2004)
Acoustic backscatter at very high frequencies from rough seabeds.
Journal of the Acoustical Society of America, 116 (4), .
Abstract
Acoustic backscatter data were gathered from a variety of seabed types, both in the laboratory tank and in coastal waters. Data were gathered from sandy sediments in the tank, with a variety of characterized rough surfaces, using narrow-band pulses at frequencies between 100 and 950 kHz. Wideband data gathered at sea were obtained at frequencies between 80 and 650 kHz. Data gathered at sea from the Acoustic Range at QinetiQ Bincleaves included backscatter from the natural sandy seabed, but also scatter from several artificial sediments (sand, gravel, and pebbles) placed in a rotator. The latter equipment allowed acoustic interrogation of the same patch of seabed from multiple angles. Experimental data are compared with fluid, poroelastic, and discrete scatterer models, with a view to recommendations for the modeling of seabed backscatter in the frequency band 100 kHz to 1 MHz.
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Published date: October 2004
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Local EPrints ID: 28020
URI: http://eprints.soton.ac.uk/id/eprint/28020
ISSN: 0001-4966
PURE UUID: 9d5021a0-a532-4342-a043-885e05014618
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Date deposited: 28 Apr 2006
Last modified: 09 Feb 2024 02:33
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Author:
R. Brothers
Author:
G.J. Heald
Author:
G. Robb
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