混响背景下基于波束成形的声成像技术  

acoustic imaging based on beamforming in reverb background

作　　者：庞凯元 刘桂峰[1] 陈思余 夏菁 PANG Kai-yuan;LIU Gui-feng;CHEN Si-yu;XIA Jing(College of Power Engineering,Naval University of Engineering,Wuhan 430000,China)

机构地区：[1]海军工程大学动力工程学院,湖北武汉430000

出　　处：《舰船科学技术》2023年第6期133-139,共7页Ship Science and Technology

基　　金：军内科研项目。

摘　　要：为了探究如何在混响场中对目标声源进行精准定位,首先模拟混响环境,构建点声源和阵列测量面,分别利用常规波束成形算法、基于正交匹配追踪的反卷积波束成形算法以及基于脉冲响应函数的自适应波束成形算法对不同频率下阵列接收到的信号进行处理,得到声成像效果图;其次在混响背景的条件下加入干扰噪声,分别利用以上3种算法对信号进行处理,通过对比分析声成像效果以及各算法的运行时间,确定基于脉冲响应函数的自适应波束成形算法的定位效果最佳。In order to explore how to precision positioning of target sound sources in the reverberation field,firstly simulated reverberation environment,construction of point source and the surface of the array measurement,respectively using conventional beam forming algorithm,the beam forming deconvolution algorithm based on orthogonal matching pursuit and adaptive beam forming algorithm based on impulse response function for array under different frequency for processing the received signal,the acoustic imaging effect diagram is obtained.Secondly,the interference noise was added under the reverberation background,and the above three algorithms were used to process the signal respectively.By comparing the acoustic imaging effect and the running time of each algorithm,the adaptive beamforming algorithm based on impulse response function was determined to have the best positioning effect.

关 键 词：混响 噪声 波束成形 脉冲响应 声成像 

分 类 号：TB525[理学—物理]