Rapid Determination of Geoacoustic Properties of the Sea Floor by Simulated Annealing

Lindwall, Dennis

Rapid Determination of Geoacoustic Properties of the Sea Floor by Simulated Annealing

2006

Lindwall, Dennis

The Naval Research Laboratory (NRL) developed and tested a simulated annealing (SA) inversion method for geoacoustic data. Significant improvements in the classical Metropolis SA algorithm improved the speed and accuracy of the SA method. This method solves for compressional and shear wave velocities, layer thicknesses, density, and attenuation when the data are sensitive to these properties. NRL demonstrated the effectiveness of the SA method with a realistic geological case that is a nonlinear problem with several traps that foil other inversion methods. Simulated annealing.

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Mots clés AGROVOC

accuracy acoustic arrays acoustics algorithms attenuation density simulation sonobuoys temperature traps velocity

Informations bibliographiques

D'autres materias

Annealing; Inversion; *geoacoustics; Pe62435n; Compression waves; Physical and dynamic oceanography; *ocean bottom; Wu745596794; Acoustic attenuation

Langue

anglais

Licence

http://handle.dtic.mil/100.2/ADA286297Approved for public release; distribution is unlimited.

Source

NAVAL RESEARCH LAB STENNIS SPACE CENTER MSDTIC AND NTIS

Auteur institutionnelle

NAVAL RESEARCH LAB STENNIS SPACE CENTER MS

Sur AGRIS depuis: 2013-06-15

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Rapid Determination of Geoacoustic Properties of the Sea Floor by Simulated Annealing

2006

Mots clés AGROVOC

Informations bibliographiques