基于通用数据采集卡的水声应答器设计

水声应答器(Acoustic Transponder/Responder)是一类常用的水声设备,主要功能是完成水下设备的定位和导航,广泛应用在水声系统测试、目标模拟以及水声科学试验中。本文以NI公司的PCI-6052采集卡和工控机构成信号处理模块,设计出了一种可灵活配置的水声应答系统(ESRAE,Extensible Sound Responder for Acoustic Experiments),通过环境噪声电平的跟踪估计和脉冲判决技术实现了复杂海洋条件下脉冲检测、回发功能,并在海洋水声信道测量试验中得到了成功的应用。

A design of acoustic transponder/responder based on the general data acquisition device

Acoustic transponder/responder is a commonly used underwater acoustic de- vice,mainly for underwater positioning and navigation.It has been widely adopted in un- derwater acoustic testing,target simulation and other underwater acoustic experiments. This paper constructs a signal processing unit based on the general data acquisition device PCI-6052 of National Instruments Corp.,and develops a flexible design method for acous- tic transponder/responder system with improve ambient noise estimation and pulse detec- tion technology.The responder realizes signal detection and pulse reply functions under noise background,and has been applied successfully in undersea acoustic survey experi- ments.