基于声呐浮标的水声信号采集系统设计  

Design of underwater acoustic signal acquisition system based on sonar buoy

作　　者：程思源 齐华[1] 郑琨[2] 孙辰奇 CHENG Siyuan;QI Hua;ZHENG Kun;SUN Chenqi(School of Electronics and Information Engineering,Xi’an Technological University,Xi’an 710021,China;School of Navigation,Northwestern Polytechnic University,Xi’an 710068,China;School of Computer Science and Information Engineering,Guangxi Normal University,Guilin 541006,China)

机构地区：[1]西安工业大学电子信息工程学院,陕西西安710021 [2]西北工业大学航海学院,陕西西安710068 [3]广西师范大学计算机科学与信息工程学院,广西桂林541006

出　　处：《电子设计工程》2023年第24期12-18,共7页Electronic Design Engineering

基　　金：国家自然科学基金项目(62001392)。

摘　　要：声呐浮标水声信号采集系统是采集和传输水声数据的常用设备。该文针对水声信号动态范围大、频率范围宽、海洋噪声信号的频率特征差异大等特点,基于浮标平台设计了一款多通道、高一致性和宽动态范围的水声信号采集系统。该系统以STM32为主控核心,通过对水声信号进行预处理,实现了四通道固定增益80 dB、动态增益40 dB、频带范围为100 Hz~20 kHz的水声信号同步高速采集。该系统还设计了上位机,将所有通道水声数据通过显示屏进行显示,并根据实际情况对系统状态进行控制。实验测试结果表明,该水声信号采集系统满足设计要求,在声呐浮标信号采集领域具有极大的应用价值。The underwater acoustic signal acquisition system of sonar buoy is a common equipment for collecting and transmitting underwater acoustic data.In the article,a multi⁃channel,high consistency and wide dynamic range underwater acoustic signal acquisition system is designed based on the buoy platform for the characteristics of large dynamic range,wide frequency range,and large difference in frequency characteristics of ocean noise signals.The system takes STM32 as the main control core.By preprocessing the underwater acoustic signal,it realizes 4-channel fixed gain of 80 dB,dynamic gain of 40 dB,and a frequency range of 100 Hz~20 kHz.Synchronous high⁃speed acquisition of underwater acoustic signals.The system is also designed with a host computer,which displays the underwater acoustic data of all channels through the display screen,and controls the system status according to the actual situation.The experimental test results show that the underwater acoustic signal acquisition system meets the design requirements and has great application value in the field of sonobuoy signal acquisition.

关 键 词：声呐浮标 水声信号采集 动态增益 STM32 

分 类 号：TN98[电子电信—信息与通信工程]