水下实时综合电磁探测系统设计  

Design of an Underwater Real-Time Integrated Electromagnetic Detection System

作　　者：陈家林[1] 徐灏 袁奕博 刘兰军[1] 连波超 CHEN Jialin;XU Hao;YUAN Yibo;LIU Lanjun;LIAN Bochao(Engineering College,Ocean University of China,Qingdao 266061,China)

机构地区：[1]中国海洋大学工程学院,山东青岛266061

出　　处：《水下无人系统学报》2023年第4期600-606,共7页Journal of Unmanned Undersea Systems

基　　金：国家重点研发计划课题资助(2019YFC1408101)。

摘　　要：针对目前水下目标电磁探测系统探测物理量单一、实时性差、综合适应能力弱等问题,文中采用超低噪声信号检测和放大、自动增益控制等技术,研制了一套水下实时综合电磁探测系统,实现了高精度、宽动态范围的电磁信号采集、存储及网络实时传输。实验室环境测试验证了该系统具备电磁场信号的高精度采集和实时传输能力,电场通道本底噪声为2 nV/√Hz@1 Hz,磁场通道本底噪声为0.12μV/√Hz@1 Hz,网络实时传输速率为6.32 MB/s。To address the issues of single physical quantity detection,poor real-time performance,and weak comprehensive adaptability in current underwater target electromagnetic detection systems,an underwater real-time integrated electromagnetic detection system was developed by using the technology of ultra-low noise signal detection and amplification,automatic gain control,etc.The system achieved high-precision electromagnetic signal acquisition,storage,and network real-time trans-mission within a wide dynamic range.Laboratory tests have validated the system’s ability to acquire high-precision electromagnetic field signals and transmit them in real time.The background noise of the electric field channel is 2 nV/√Hz@1 Hz,and that of the magnetic field channel is 0.12μV/√Hz@1 Hz,while the network real-time transmission rate is 6.32 MB/s.

关 键 词：水下目标探测 电磁探测 超低噪声信号检测 实时综合观测 

分 类 号：U674.941[交通运输工程—船舶及航道工程] TJ630.34[交通运输工程—船舶与海洋工程]