水下磁通信系统研制与调试  

Exploration of Underwater Wireless Communication Technology Supported by Magnetic Induction

作　　者：姜黎黎 苏海涛 JIANG Lili;SU Haitao(Shandong Postal and Telecommunications Planning and Design Institute Co.,Ltd.,Jinan 250101,China)

机构地区：[1]山东省邮电规划设计院有限公司,山东济南250101

出　　处：《通信电源技术》2024年第13期224-227,共4页Telecom Power Technology

摘　　要：文章研究水下磁感应通信技术,旨在为海洋资源开发和环境监测提供一种有效的通信手段。通过对水下磁场特性的分析,设计了磁通信系统,包括发射电路、接收电路以及收发天线。系统采用调幅信号,通过功率放大电路提高发射功率,同时设计了自动增益控制电路以适应不同通信距离。实验在一个80 cm×80 cm×30 cm的玻璃水缸中进行,使用1.6 MHz正弦波信号激励发射线圈,通信距离为0.1~1.0 m。实验结果表明,水介质的导电特性使得水下通信传输距离比空气中更远,但随着涡流损耗的增加,系统的能量损失变得更加明显。This article studies underwater magnetic induction communication technology,aiming to provide an effective communication method for marine resource development and environmental monitoring.By analyzing the characteristics of underwater magnetic fields,design and implement a magnetic communication system,including transmission circuits,reception circuits,and transceiver antennas.The system adopts amplitude modulation signal and increases the transmission power through power amplification circuit.At the same time,an automatic gain control circuit is designed to adapt to different communication distances.The experiment was conducted in an 80 cm×80 cm×30 cm glass water tank,using a 1.6 MHz sine wave signal to excite the transmitting coil,with a communication distance of 0.1~1.0 m.The experimental results show that the conductive properties of water medium make the transmission distance of underwater communication longer than in air,but as the eddy current loss increases,the energy loss of the system becomes more significant.

关 键 词：水下无线通信 磁感应通信 功率放大电路 自动增益控制 

分 类 号：TN92[电子电信—通信与信息系统]