正交频分复用技术下舰船短波通信抗干扰研究  

Research on anti-jamming of ship shortwave communication under orthogonal frequency division multiplexing technology

作　　者：王怡 涂宇 陈佳才 李榕祺 WANG Yi;TU Yu;CHEN Jia-cai;LI Rong-qi(College of Transportation Engineering,Hunan Institute of Traffic Engineering,Hengyang 421200,China)

机构地区：[1]湖南交通工程学院交通运输工程学院,湖南衡阳421200

出　　处：《舰船科学技术》2023年第15期115-118,共4页Ship Science and Technology

基　　金：湖南省教育厅科学研究重点项目(21A0608);湖南省自然科学基金资助项目(2022JJ50151)。

摘　　要：本文研究正交频分复用技术的原理和舰船短波通信技术的基本特性,通过对舰船短波通信系统的干扰源进行分析,提出一种基于正交频分复用技术的抗干扰控制技术。该短波通信系统利用正交频分复用技术的频域隔离特性,将不同频段的信号分配到不同的子载波上,从而实现了信号的并行传输和噪声抑制。结合Matlab软件的仿真测试结果表明,该方案能够有效地抑制短波通信过程的干扰信号影响,提高了舰船短波通信系统的性能。In this paper,the principle of orthogonal frequency division multiplexing technology and the basic characteristics of ship shortwave communication technology are studied.By analyzing the interference sources of ship shortwave communication system,an anti-interference control technology based on orthogonal frequency division multiplexing technology is proposed.The HF communication system uses the frequency domain isolation characteristic of orthogonal frequency division multiplexing technology to assign signals of different frequency bands to different subcarriers,thus realizing parallel signal transmission and noise suppression.The simulation results of Matlab show that this scheme can effectively suppress the interference signal and improve the performance of ship shortwave communication system.

关 键 词：正交频分复用 短波通信 噪声抑制 抗干扰 

分 类 号：U625.24[交通运输工程—船舶及航道工程]