| Mathematical characterization of the acoustic brightness and contrast control problem in complex vector space. | |
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MedLine Citation:
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PMID: 19354738 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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The acoustic brightness and contrast control methods [J.-W. Choi and Y.-H. Kim, J. Acoust. Soc. Am. 111, 1695 (2002)] is one of the methods which can generate higher acoustic energy in desired space by controlling multiple control sources. Since the problem is represented with complex valued multidimensional vector, the relation between input control values (magnitude and phase information of control sources) and output value (acoustic energy level in desired zone) is somewhat hard to predict intuitively. In this paper, a visualized analysis method for the acoustic brightness and contrast control problems is proposed. A geometric structure is given to the problem and acoustic variables are corresponded with geometric quantities. To give a geometric structure to acoustic brightness and contrast problem, the problem is reformulated with inner product. From the geometric structure, the acoustic brightness and contrast control problems are interpreted as a simple geometry problem. From the proposed methods, various 2D simulation results with different conditions can be interpreted with simple geometry characteristic. |
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Authors:
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Minho Song; Yang-Hann Kim |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: The Journal of the Acoustical Society of America Volume: 125 ISSN: 1520-8524 ISO Abbreviation: J. Acoust. Soc. Am. Publication Date: 2009 Apr |
Date Detail:
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Created Date: 2009-04-09 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 7503051 Medline TA: J Acoust Soc Am Country: United States |
Other Details:
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Languages: eng Pagination: 2538 Citation Subset: IM |
Affiliation:
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Graduate School of Culture Technol., Korea Adv. Inst. of Sci. and Technol., Sci. Town, Daejon 305-701, KoreaKorea Adv. Inst. of Sci. and Technol., Sci. Town, Daejon 305-701, Korea. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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