应用于低频水声信号探测的小型潜标系统设计  

The Design of a Small Buoy System for Detecting Low-Frequency Underwater Acoustic Signals

作　　者：沈倪鑫 杨晟辉 王任鑫[1] 张国军[1] 张文栋[1] SHEN Nixin;YANG Shenghui;WANG Renxin;ZHANG Guojun;ZHANG Wendong(Key Laboratory of Instrumentation Science and Dynamic Measurement of Ministry of Education,North University of China,Taiyuan 030051,China)

机构地区：[1]中北大学仪器科学与动态测试教育部重点实验室,太原030051

出　　处：《电子器件》2019年第2期497-500,共4页Chinese Journal of Electron Devices

基　　金：国家自然科学基金项目(61127008);国家重点研发计划项目(2016YFC0101900);山西省应用基础研究项目(201601D011035)

摘　　要：针对水声信号探测和MEMS矢量水听器工程应用的需求,设计了一种应用于低频水声信号探测的小型潜标系统,该系统具有体积小、成本低、布放回收简便等优点。系统以FPGA为控制核心,控制三维姿态传感器采集MEMS矢量水听器姿态信息;同时将采集到的水听器信号一起传输至上位机分析和显示,实现水声信号的探测。实验结果表明:该系统数据传输速率为2 Mbyte/s,探测信号频段范围为20 Hz～1 kHz;该系统在水下工作稳定,可正确记录水声信号。According to the requirements of underwater acoustic signal detection and MEMS vector hydrophone application,a buoy system for detecting low frequency acoustic signals was designed.The system has the advantages of small size,low cost and it is easy to be recycled.This system taking FPGA as a key component is equipped with MEMS vector hydrophone,whose attitude information is given by three-dimensional attitude transducer.After sampling,the output signals of vector hydrophone and the attitude information,will be analyzed and presented by host computer,which realize the detection of underwater signals.This submerged buoy system has been tested,the result shows that its data transmission rate is 2 Mbyte/s,and the signal detecting frequency range is 20 Hz to 1 kHz.At the same time,this system works stably in underwater environment and it is able to record underwater acoustic signals correctly.

关 键 词：水声测量 潜标 FPGA MEMS 矢量水听器 

分 类 号：O427.9[理学—声学] TB56[理学—物理]