现代电子技术2025，Vol.48Issue(7)：23-28,6.DOI:10.16652/j.issn.1004-373x.2025.07.004
基于虚拟阵元自适应波束合成超声成像算法
Ultrasound imaging algorithm based on virtual array element adaptive beam-forming
摘要
Abstract
An ultrasound imaging algorithm based on virtual array element adaptive beam-forming is proposed to overcome the contradiction between resolution and probing depth,and improve the low image contrast in ultrasound imaging.In the method,the resolution and detection depth in ultrasound imaging is adjusted by virtual array element dual focusing beam-forming,and the overall image is processed by adding coherence factor after optimal weighting of echo data by the minimum variance beam-forming algorithm.Virtual array element dual focusing is used to increase the effective aperture size of the array to improve resolution and focusing performance;minimum variance beam-forming is used to suppress noise and increase the intensity of the signal(the object);and the coherence factor is used to improve the quality and contrast of the image.Simulation experiments on simulated point(the object)and simulated cyst(the object)are conducted in Field Ⅱ and the four imaging algorithms are contrasted.The experimental results show that the resolution of the proposed method does not decrease dramatically with the increase of probing depth,and its contrast outperforms that of the traditional imaging methods.关键词
超声成像/虚拟阵元/最小方差/相干系数/分辨率/对比度Key words
ultrasound imaging/virtual array element/minimum variance/coherence factor/resolution/contrast分类
电子信息工程引用本文复制引用
左天乐,杨录,滕生超,孟睿..基于虚拟阵元自适应波束合成超声成像算法[J].现代电子技术,2025,48(7):23-28,6.基金项目
山西省研究生实践创新项目(2023SJ207) （2023SJ207）
