基于 LabVIEW系统的水声测向方法设计

LabVIEW是 NI（美国国家仪器）公司推出的一种虚拟仪器系统，包括图形化的可编程语言及多元化的硬件设备。基于该系统的水声信号采集系统常用于水声应用中。本文结合常用的互功率谱测向方法与 LabVIEW虚拟仪器系统，分别设计基于标量水听器和矢量水听器的水下声源测向方法。基于 LabVIEW虚拟仪器系统的设计可以提高开发灵活性，缩短开发周期并减少开发复杂度。通过验证基于虚拟仪器系统在互谱测向应用中的可行性，为未来开发水下设备提供一个新的思路。

Direction detecting of underwater acoustic based on labview system

LabVIEW is a virtual instrument system of NI (America National Instrument) corporation, including graphic programmable language and diversification equipment. This system is often used in collecting underwater sound signal. This paper designed a way of direction detecting based on cross-power spectrum algorithm which is often used in underwater application with LabVIEW system. Design based on LabVIEW system can develop flexibility, reduce development cycle and complexity. By verifying the feasibility that detecting direction of underwater with cross-power spectrum based on LabVIEW systemwe offer a new way to design underwater equipment in the future.