基于LoRa的钢制船舶通信系统电波传播特性研究  

Research on Radio Wave Propagation Characteristics of Steel Ship Communication System Based on LoRa

作　　者：王玉国[1] 郑齐清 WANG Yu-guo;ZHENG Qi-qing(The Institute of Transportation and Navigation,Quanzhou Normal University,Quanzhou Fujian 362000,China)

机构地区：[1]泉州师范学院交通与航海学院,福建泉州362000

出　　处：《广州航海学院学报》2023年第2期23-27,33,共6页Journal of Guangzhou Maritime University

基　　金：福建省中青年教师教育科研项目(JAT190535)。

摘　　要：为了提高船舶通信系统的通信质量,研究基于LoRa的钢制船舶通信系统电波传播特性.根据电波传播机制,基于LoRa建立电波传播方程,获取电波传播时延;通过计算电波传播损耗,掌握电波传播规律,得到电波传播接收功率路径损耗、随距离的变化以及能量分布情况.电波传播特性实验分析表明,电波传播损耗指数与发射天线高度呈反比关系,与频率呈正比关系,接收天线在船舶走廊中央时的路径损耗更少;在带拐弯部分的钢制船舶走廊场景下,电波传播时延平均值为38.45ns,均方根时延的平均值为1.89ns,收发天线之间的距离对均方根时延的影响较小。In order to improve the communication quality of ship communication system,the radio propagation characteristics of steel ship communication system based on LoRa are studied.According to radio propagation mechanism,radio propagation equation is established based on LoRa to obtain radio propagation delay;By calculating the radio propagation loss,master the law of radio propagation,and get the received power path loss of radio propagation,changes with distance,and energy distribution.The experimental analysis of radio propagation characteristics shows that the loss index of radio propagation is inversely proportional to the height of the transmitting antenna and directly proportional to the frequency.When the receiving antenna is in the center of the ship corridor,the path loss is less;In the scene of steel ship corridor with turning part,the average value of radio propagation delay is 38.45 ns,and the average value of root mean square delay is 1.89 ns.The distance between receiving and transmitting antennas has little impact on the root mean square delay.

关 键 词：LoRa 钢制船舶 通信系统 电波传播机制 电波传播特性 路径损耗 

分 类 号：TN929.5[电子电信—通信与信息系统]