基于电流场的阵列极板水下通信系统仿真分析

Simulation and analysis of current field based underwater communication system with arrayed polar plates

电流场通信是一种无线通信技术,通过传导电流在水体中传播。传统的水下电磁波通信存在信号衰减大、天线复杂、架设困难等问题。因此,结合电流场水下传播理论,提出了一种基于阵列极板的水下通信系统。使用有限元软件Comsol建立了阵列极板电场模型,并通过频域分析模拟了1×4阵列切面的电场和电势分布。同时,在1×4阵列和1×2阵列之间进行了信号接收效果的对比。在此基础上,分析了6组正负极接线方式对信号接收强度的影响。瞬态时域分析则用于模拟输入输出波形的变化。实验证明,在不增加发射功率的条件下,通过增加阵列排布数量,可以有效提高通信效果。同时,传输过程中信号波形基本保持不变,无相位偏移,从而证明了阵列极板水下通信的可行性。研究结果为新型电流场水下通信系统的建立提供了理论基础。

Current field communication represents a wireless technology that propagates through underwater environments by conducting electric current.Conventional underwater electromagnetic wave communication encounters challenges such as significant signal attenuation,intricate antenna structures,and installation difficulties.To address these issues,this study integrates the theory of underwater current field propagation and proposes an underwater communication system based on an array of polar plates.The electric field model of the array polar plate is established utilizing the finite element software Comsol.Frequency domain analysis is employed to simulate the electric field and potential distribution of the 1×4 array cut surface.Additionally,a comparative analysis of signal reception effectiveness is conducted between 1×4 and 1×2 arrays.Building upon this,the impact of six sets of positive and negative wiring methods on signal reception strength is analyzed.Transient time-domain analysis is then applied to simulate changes in input and output waveforms.Experimental results validate that enhancing the number of array rows effectively improves communication without increasing transmit power.Moreover signal waveforms exhibit minimal alteration and maintain phase stability during transmission,thereby confirming the viability of underwater communication using arrayed polar plates.The findings of this research contribute a theoretical foundation for the development of a novel current field underwater communication system.