Proceedings of the KOSOMBE Conference (대한의용생체공학회:학술대회논문집)

The Korean Society of Medical and Biological Engineering (대한의용생체공학회)
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Tx/Rx Bidirectional Beamforming Using Multi - Element Defocusing

Multi-Element Defocusing을 이용한 Tx/Rx 양방향 빔포밍

  • Lee, Y.H. (Department of Electronic, Information and Communication Engineering College of Engineering Konkuk University) ;
  • Hwang, J.S. ;
  • Song, T.K. ;
  • Ahn, Y.B. (Department of Electronic, Information and Communication Engineering College of Engineering Konkuk University)
  • 이용호 (건국대학교 공과대학 전자정보통신공학과) ;
  • 황재섭 (서강대학교 공과대학 전자공학과) ;
  • 송태경 (서강대학교 공과대학 전자공학과) ;
  • 안영복 (건국대학교 공과대학 전자정보통신공학과)
  • Published : 1998.11.20
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Abstract

Although a single-element synthetic aperture system can produce high-resolution beam profile, it is not a highly practical system because of its low signal to noise ratio against conventional system's. A multi-element synthetic aperture processing has been proposed with defocusing in this paper. A multi element subaperture defocused to emulate a single element spatial response with high acoustic power. The results have higher signal to noise and better contrast resolution than conventional synthetic aperture method.

Keywords