Scattering of parametric array signals by spherical unregularities

Author

Bur´kov, D.V. ; Starchenko, I.B. ; Timoshenko, V.I.

Author_Institution

Taganrog State Univ. of Radioeng., Russia

fYear

1998

fDate

1998

Firstpage

263

Lastpage

264

Abstract

Different objects, situated in water medium, can be obtained in the region of formation of radiation of parametric array. For example, air bubbles, bioobjects, singular fishes, fish accumulations etc. These objects, being present in the region of interaction of primary waves, may put distortions and changes in the field, that is forming, scattering sound energy. Because of that it is necessary to consider their possible influence. In the given issue this problem is solved in the next formulation: scattering objects are modeling as absolutely hard spheres, re-radiating signals of parametric array to the space angle

Keywords

acoustic signal processing; acoustic wave scattering; underwater acoustic propagation; acoustic signal; air bubble; bioobjects; distortions; fish accumulations; hard spheres; interaction of primary waves; parametric array; parametric array signals; radiation of parametric array; re-radiating signals; scattering sound energy; singular fishes; space angle; spherical unregularities; underwater sound; water; Acoustic diffraction; Acoustic distortion; Acoustic scattering; Acoustic transducers; Acoustic waves; Frequency; Geometry; Integral equations; Marine animals; Scattering parameters;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronic Instrument Engineering Proceedings, 1998. APEIE-98. Volume 1. 4th International Conference on Actual Problems of

Conference_Location

Novosibirsk

Print_ISBN

0-7803-4938-5

Type

conf

DOI

10.1109/APEIE.1998.768960

Filename

768960