Modeling interface roughness scattering in a layered seabed for normal-incident chirp sonar signals | Zendy

Dajun Tang | Zendy; Brian T. Hefner | Zendy

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Modeling interface roughness scattering in a layered seabed for normal-incident chirp sonar signals

Author(s) -

Dajun Tang,

Brian T. Hefner

Publication year - 2012

Publication title -

the journal of the acoustical society of america

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.619

H-Index - 187

eISSN - 1520-8524

pISSN - 0001-4966

DOI - 10.1121/1.3690962

Subject(s) - sonar , seabed , chirp , geology , acoustics , scattering , surface finish , interface (matter) , synthetic aperture sonar , inversion (geology) , computer science , seismology , optics , materials science , physics , bubble , oceanography , laser , tectonics , maximum bubble pressure method , parallel computing , composite material

Downward looking sonar, such as the chirp sonar, is widely used as a sediment survey tool in shallow water environments. Inversion of geo-acoustic parameters from such sonar data precedes the availability of forward models. An exact numerical model is developed to initiate the simulation of the acoustic field produced by such a sonar in the presence of multiple rough interfaces. The sediment layers are assumed to be fluid layers with non-intercepting rough interfaces.

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