ADAPTIVE FOCUSING IN SCATTERING MEDIA THROUGH SOUND-SPEED INHOMOGENEITIES - THE VANCITTERT-ZERNIKE APPROACH AND FOCUSING CRITERION

被引：191

作者：

MALLART, R ^{[1
]}

FINK, M ^{[1
]}

机构：

[1] UNIV PARIS 07,ESPCI,ONDES & ACOUST LAB,F-75005 PARIS,FRANCE

来源：

JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA | 1994年 / 96卷 / 06期

关键词：

D O I：

10.1121/1.410562

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

An original formalism that allows a thorough understanding of cross-correlation-based phase aberration correction techniques in a scattering medium is developed. This formalism is based on the analysis of the second-order statistics of the pressure field scattered by a random distribution of scatterers. One of the major interests of this analysis is the ability it provides to evaluate and monitor the convergence of phase aberration correction techniques. This is achieved by the computation of a single parameter C that serves as a focusing criterion. The theoretical developments are validated experimentally. © 1994, Acoustical Society of America. All rights reserved.

引用

页码：3721 / 3732

页数：12

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