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Tomographical reconstruction of oceanic inhomogeneities. 1. Forming partially coherent acoustic wave structures in the ocean with spatially localized noise sources

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3 Author(s)
Smirnov, I.P. ; Inst. of Appl. Phys., Acad. of Sci., Nizhny Novgorod, Russia ; Khil'ko, A.I. ; Caruthers, J.W.

The formation and features of partially coherent acoustical waves excited by spatially localized noise sources are investigated in this work. It is shown that nonuniform distributions of the parameters of partially coherent waves in oceanic waveguides appear due to inhomogeneities of oceanic environments. Physical models of spatially localized noise sources, such as ships, are developed. Analysis and calculations show that interference noise can be eliminated by increasing the size and frequency bandwidth of the noise sources. The conditions for forming coherence bundle structures are studied from the point of view of the possibilities of using them for acoustical measurements

Published in:

OCEANS '95. MTS/IEEE. Challenges of Our Changing Global Environment. Conference Proceedings.  (Volume:3 )

Date of Conference:

9-12 Oct 1995