3D high-resolution acoustic imaging of the sub-seabed
Gutowski, Martin, Bull, Jonathan M., Dix, Justin K., Henstock, Timothy J., Hogarth, Peter, Hillier, Tom, Leighton, Timothy G. and White, Paul R. (2008) 3D high-resolution acoustic imaging of the sub-seabed. Applied Acoustics, 69, (3), 262-272. (doi:10.1016/j.apacoust.2006.08.010).
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Chirp sub-bottom profilers are marine acoustic devices that use a known and repeatable frequency-modulated source signature to produce vertical seismic reflection cross-sections of the sub-seabed. Here a 3D Chirp system is described that operates in the frequency range of 1.5–13 kHz, to produce a three-dimensional image of the sub-seabed, with typical penetration of 10–30 m and decimetric horizontal and vertical resolution. The system design incorporates a rigid frame that contains the Chirp source array together with 60 receiver elements, with positioning provided by an integrated real-time-kinematic (RTK) global positioning system (GPS). The system can be surface towed from a small survey vessel and can be applied to targets of marine geological, engineering, archaeological and defence interest. Data acquisition and processing are described for a case study which images a buried engineering structure in the Port of Southampton.
|Additional Information:||Also published in Applied Acoustics 69(5) as a result of publisher's error|
|Keywords:||chirp, 3D chirp, 3D seismics, high-resolution seismics|
|Subjects:||V Naval Science > VM Naval architecture. Shipbuilding. Marine engineering
G Geography. Anthropology. Recreation > GC Oceanography
|Divisions:||University Structure - Pre August 2011 > Institute of Sound and Vibration Research > Fluid Dynamics and Acoustics
|Date Deposited:||01 May 2008|
|Last Modified:||27 Mar 2014 18:34|
|Contact Email Address:||email@example.com|
|RDF:||RDF+N-Triples, RDF+N3, RDF+XML, Browse.|
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