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.
2023,45(15): 115-118 收稿日期：2023-04-15
DOI：10.3404/j.issn.1672-7649.2023.15.022
分类号：U625.24A
基金项目：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）
作者简介：王怡(1987-),女,硕士,副教授,主要研究方向为信号处理及抗干扰技术等
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