彩超中的数字多波束形成技术研究  

Research on Digital Multi-beam Forming Technology in Color Ultrasound

作　　者：熊世杰[1,2] 武剑辉[1,2] 

机构地区：[1]电子科技大学生命科学与技术学院,成都610054 [2]东莞电子科技大学电子信息工程研究院,广东东莞523808

出　　处：《医疗卫生装备》2010年第8期33-36,共4页Chinese Medical Equipment Journal

基　　金：东莞市高等院校科研机构科技计划项目(2007108101087);粤港关键领域重点突破项目招标东莞专项(2009205131)

摘　　要：目的:解决彩色超声诊断仪实时成像前端波束形成模块对处理速度的高要求的矛盾。方法:针对这一需求,在原有的数字波束形成技术的基础上,产生了数字多波束形成技术。它利用一次波束发射,形成2条以上的接收波束,加快了扫描速度。结果:根据数字多波束形成原理,通过软件仿真,证明了这种思想的可行性,最后还介绍了基于FPGA的硬件实现方法。结论:数字多波束形成技术能够作为提高成像速度的方法应用在彩超中。Objective To resolve the contradiction between the real-time imaging of the color ultrasound system and its requirements for a higher processing speed of the front-end beam forming module.Methods A digital multi-beam forming technology was produced in response to the demand on the basis of the digital beam forming.It accelerated the speed of scanning by transmitting one beam and generating more than 2 receiving beams.Results The feasibility of the research was testified based on the theory of the digital multi-beam forming and by using software simulation.A FPGA-based hardware implementation method was also presented.Conclusion Digital multi-beam forming technology can be applied to color ultrasound as a proper method of improving the imaging speed.

关 键 词：数字多波束形成 MATLAB FIELD II FPGA 

分 类 号：R445.1[医药卫生—影像医学与核医学] R318.6[医药卫生—诊断学]