Generation of an acoustically bright zone with an illuminated region using multiple sources

This article addresses the way in which we can generate an "acoustically bright zone" in a space. The bright zone is defined as the volume where we can have higher acoustic energy than in other space. A method is proposed to generate the bright zone by controlling multiple monopole sources. Two kinds of cost functions involved with acoustic brightness are defined. One is the ratio of the brightness of a zone to the input power, and the other expresses the "contrast" between the bright zone and the other space. Through eigenvalue analysis, the optimal volume velocity distribution of the monopoles has been obtained. (C) 2002 Acoustical Society of America.
Publisher
ACOUSTICAL SOC AMER AMER INST PHYSICS
Issue Date
2002-04
Language
ENG
Keywords

TIME-REVERSAL; FILTER

Citation

JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA, v.111, no.4, pp.1695 - 1700

ISSN
0001-4966
DOI
10.1121/1.1456926
URI
http://hdl.handle.net/10203/3843
Appears in Collection
ME-Journal Papers(저널논문)
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