Design of unidirectional acoustic probes with flexible directivity patterns using two acoustic particle velocity sensors
Design of unidirectional acoustic probes with flexible directivity patterns using two acoustic particle velocity sensors
复制标题
使用两个声粒子速度传感器设计具有灵活方向性模式的单向声学探头
DOI：
10.1121/1.5044640
复制
发表时间：
2018-07-01
影响因子：
2.4
通讯作者：
Yu, Shiduo
中科院分区：
文献类型：
--
作者：
Wang, Yong;Yang, Yixin;Yu, Shiduo
本文提出了一种利用两个声质点速度传感器设计具有灵活指向性的单向声探头的方法。该双传感器阵列的闭合形式的加权矢量是通过找到以一般形式表示的所需方向性图案的最小均方误差近似来精确导出的。不同的单向声探头可以通过适当地选择所需的方向性图案，和先前提出的基于粒子速度梯度的设计方法可以被认为是所提出的方法的一个特例。仿真和实验结果表明，该方法具有良好的性能。(C)2018年美国声学学会
This letter proposes a method of designing unidirectional acoustic probes with flexible directivity patterns using two acoustic particle velocity sensors. The closed-form weighting vector of this two-sensor array is accurately derived by finding the minimum mean square error approximation to a desired directivity pattern that is expressed in a general form. Different unidirectional acoustic probes can be obtained by properly selecting the desired directivity pattern, and the previously proposed particle velocity gradient-based design approach can be thought of as a special case of the proposed method. Simulations and experimental results demonstrate the good performance of the proposed method. (C) 2018 Acoustical Society of America