基于虚拟仪器的水声信号采集与处理

Data acquisition and analysis of the underwater acoustic signal based on virtual instrument

利用数据采集卡和LabVIEW软件对水声信号进行采集和处理,实现了对水下特定目标的声频特性分析。利用由8个换能器组成的水听器阵,通过8通道数据采集卡对水下目标的噪声进行采集,实现了对水下目标定位的初步研究和算法验证。利用虚拟仪器方便地实现了对水声信号的采集、处理,以及对水下目标测量时,为传感器结构和算法的确定提供参考。

Underwater acoustic signal is acquired and analyzed by using data aquisition cards and LabVIEW,and the frequency characteristic of some underwater sound source is investigated.The underwater localization and corresponding arithmetic is studied through 8-channels data acquisition of the noise of the underwater object by use of eight hydrophones.It is convenient to use the virtual instrument for data acquisition and analysis of the underwater acoustic signal,and help us to determine the structure and the arit...