Hydroacoustical experiments for determination of sediment parameters

Author

Ivansson, S. ; Morén, P. ; Parastates, E. ; Westerlin, V.

Author_Institution

Hydroacoustics and Seismology, Nat. Defence Res. Establ., Stockholm, Sweden

Volume

3

fYear

1994

fDate

13-16 Sep 1994

Abstract

Three different kinds of hydroacoustical experiments conducted in Kalmarsund in the Baltic are described: (1) excitation with a slowly moving monofrequency source for transmission loss measurements and modal structure analysis, (2) excitation of transient waves using explosive charges, (3) excitation with a frequency sweep for analysis of transmission loss as function of frequency. The experiments are analysed within the framework of a laterally homogeneous model, treating the seabed as a layered elastic solid. Geoacoustic modeling and inversion for medium parameters is performed using genetic algorithms

Keywords

oceanographic techniques; sediments; underwater sound; Baltic Sea; Kalmarsund; Sweden; explosive charges; frequency sweep; geoacoustic inversion; geoacoustic modelling; hydroacoustical experiments; laterally homogeneous model; layered elastic solid; modal structure analysis; seabed; sediment parameter determination; slowly moving monofrequency source; transient wave excitation; transmission loss measurements; Explosives; Frequency; Genetic algorithms; Geologic measurements; Loss measurement; Propagation losses; Reflection; Sediments; Solid modeling; Velocity measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

OCEANS '94. 'Oceans Engineering for Today's Technology and Tomorrow's Preservation.' Proceedings

Conference_Location

Brest

Print_ISBN

0-7803-2056-5

Type

conf

DOI

10.1109/OCEANS.1994.364198

Filename

364198