基于MEMS矢量水听器的水下目标方位探测系统设计  

Design of underwater target azimuth detection system based on MEMS vector hydrophone

作　　者：柳燕 张国军[1] 张文栋[1] 拜政宇 戴文舒 LIU Yan;ZHANG Guojun;ZHANG Wendong;BAI Zhengyu;DAI Wenshu(State Key Laboratory of Dynamic Measurement Technology,North University of China,Taiyuan 030051,China)

机构地区：[1]中北大学省部共建动态测试技术国家重点实验室,山西太原030051

出　　处：《传感器与微系统》2024年第11期86-89,共4页Transducer and Microsystem Technologies

基　　金：国家重大科研仪器研制项目(61927807);国家重点研发计划资助项目(2019YFC0119800);国家自然科学基金资助项目(51875535,52175553);山西省面上科学基金资助项目(202203021211092)。

摘　　要：本文设计了一种结构、尺寸均适配于微型浮标的小型化水下目标方位探测系统,针对水下固定频率的声目标方位获取进行研究,主要适用于水下目标主、被动双基地探测。测试系统利用微机电系统(MEMS)矢量水听器作为核心传感器,设计现场可编程门阵列(FPGA)读写控制电路,一方面,采集的数据存储于SD卡中;另一方面,则将数据暂存在随机存取存储器(RAM)中,以备数据回传需求。通过驻波管实验证明:搭建的小型化目标方位探测系统稳定可靠,根据其所采数据在有效范围内可以获得目标的方位估计,驻波管内角度误差估计小于2°,误差小且定向准确。A miniaturized underwater target azimuth detection system tailored in structure and size for micro buoys is designed,research on acquiring azimuth of underwater fixed⁃frequency acoustic targets is focused on.The system primarily suitable for passive and active dual⁃base underwater target detection.The test system utilizes MEMS vector hydrophone as core sensor and field programmable gate array(FPGA)read⁃write control circuit is designed.On one hand,the acquired data are stored in SD card;on the other hand,the data are temporarily stored in random access memory(RAM)for data retrieval needs.The standing wave tube experiment demonstrates that the constructed miniaturized target azimuth detection system is stable and reliable.Based on the collected data,the system can accurately estimate the azimuth of the target within the effective range.The estimated angular error within the standing wave tube is less than 2°,indicating a small error and precise directionality.

关 键 词：MEMS矢量水听器 测试系统 目标方位探测 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]