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HUSTIR > College of Engineering > Department of Electrical Engineering & Graduate Institute > Journal > Item 310993100/217

Please use this identifier to cite or link to this item: http://ir.hust.edu.tw/dspace/handle/310993100/217

Title:	Analytic Solution to acoustic scattering from layered models
Authors:	Chih-Yej King
Contributors:	Department of Electrical Engineering
Keywords:	Lame Parameter Spatial Fourier Transform Rytov and Born Appreximations Bulk and Shear Modulus Dyadic Green Integration
Date:	2001-09
Issue Date:	2008-08-20T03:55:08Z
Abstract:	The identification of material characteristics in its fundamental form is an inverse problem - the construction under the specified geometry and composition of a medium from measurements of scattered ultrasonic radiation. In a less rigid sense, the identification schemes reviewed in this research can be generally divided into two fundamental components. The first part involves the use of the amplitude of the echo signals, and the second concern does utilize its frequency transformation of the medium function. Consequently, analytic field solution of the ultrasonic wave propagating through homogeneous and/or inhomogeneous mediums is considered and discussed. Moreover, Rytov and Born approximations are used to evaluate and calculate the generic expression of the traveling wave. The proposed model developed herein will be applicable to both 2 and 3 dimensional medium architecture. Even if the inverse problem exclusively involved, this algorithm is also situated to reconstruct the characteristic related to scatterer.
Relation:	修平學報 3, 131-146
Appears in Collections:	[Department of Electrical Engineering & Graduate Institute] Journal

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