Ultrasonic Synthetic Apertures: Review

被引：15

作者：

Nowicki, Andrzej ^{[1
]}

Gambin, Barbara ^{[1
]}

机构：

[1] Polish Acad Sci, Inst Fundamental Technol Res, PL-02106 Warsaw, Poland

来源：

ARCHIVES OF ACOUSTICS | 2014年 / 39卷 / 04期

关键词：

synthetic aperture; effective aperture; ultrasonography; TISSUE INHOMOGENEITIES; PHASE CORRECTION; MOTION;

D O I：

10.2478/aoa-2014-0047

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

In the paper the concept of synthetic aperture used for high resolution/high frame rate ultrasonic imaging is reviewed. The synthetic aperture technique allows building extended "virtual" apertures, synthesized from smaller real aperture resulting in improved lateral resolution along full penetration depth without sacrificing the frame rate. Especially, four methods, synthetic aperture focusing (SAF), multi -element synthetic aperture focusing (M -SAF), synthetic receive aperture (SRA) and synthetic transmit aperture (STA) are addressed. The effective aperture function, describing two-way, far field radiation is a useful tool in beam pattern analysis. Some basic notations, which are used to calculate the effective aperture are introduced in Appendix.

引用

页码：427 / 438

页数：12

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