深海水面通信信道传播特性分析

Analysis of Propagation Characteristics of Deep Sea Surface Communication Channel

深海水面是一种极特殊的电磁波传播环境。该环境下存在海浪散射、海水电特性、海杂波以及大气折射等诸多因素,导致通信信号传播过程中出现多径效应,且具有随机时变特性,对信号的接收和处理提出了较大挑战。因此,针对典型工程应用中的深海水面传播场景,对其海浪特性、海水电特性等展开分析,通过选用合理的无线电波传播模型计算传播损耗,并分析通信信道通断规律,为后续进一步信道建模和通信信号体制设计、信号发射接收技术提出建议。

Deep sea surface is a very special electromagnetic wave propagation environment.In this environment,there are many factors such as ocean wave scattering,sea electrical characteristics,sea clutter,atmospheric refraction,etc.,which lead to multipath effects and random time-varying characteristics in the propagation of communication signals.They pose greater challenges to signal reception and processing.Based on the deep sea surface propagation scenarios in typical engineering applications,this paper analyzes its wave characteristics,seawater electrical characteristics,etc.,calculates the propagation loss by selecting a reasonable radio wave propagation model,and analyzes the on-off laws of communication channels for further follow-up suggestions on channel modeling and communication signal system design,signal transmission and reception technology.