公开(公告)号：US20150023135A1

公开(公告)日：2015-01-22

申请号：US14285370

申请日：2014-05-22

Applicant: Huazhong University of Science and Technology

Inventor： Ming YUCHI ,  Mingyue DING ,  Yanping JIA ,  Liushuai LV

IPC: G01S15/02

CPC classification number: G01S15/8925 ,  G01S15/8927 ,  G01S15/8993 ,  G10K11/346

Abstract: The invention discloses a split row-column addressing method for three-dimensional ultrasound imaging, and the method comprises: for an N×N planar array, obtain the pulse-echo response distribution from fully connected two-dimensional planar array, parameters thereof comprising beam widths A′ and B′ at −6 dB and −20 dB respectively, average side lobe C′, highest side lobe D′ and main side-lobe energy ratio E′; set counter K=2, split two-dimensional planar array into K regions in channel direction, determine array elements amount and connect array elements in each region; calculate the time delay according to distance between the coordinates of each region and the focus point within a scanning range of the two-dimensional planar array, and analyze the two-dimensional planar array by ultrasonic sound field simulation algorithm according to the time delay of each region. The invention can solve the prior art of low resolution, and the problem that transmitted and received beam cannot be deflected.

Abstract translation: 本发明公开了一种用于三维超声成像的分割行列寻址方法，该方法包括：对于N×N平面阵列，从完全连接的二维平面阵列获得脉冲回波响应分布，其参数包括波束 分别为-6dB和-20dB的宽度A'和B'，平均旁瓣C'，最高旁瓣D'和主旁瓣能量比E'; 设置计数器K = 2，将二维平面阵列拆分成通道方向的K个区域，确定阵列元素数量并连接每个区域中的阵列元素; 根据每个区域的坐标和二维平面阵列的扫描范围内的焦点之间的距离计算时间延迟，并根据每个区域的时间延迟，通过超声波场模拟算法分析二维平面阵列 地区。 本发明可以解决低分辨率的现有技术，并且发射和接收波束的问题不能被偏转。