采用OFDM正交频分复用技术的船舶无线通信同步技术研究  

Research on marine wireless communication synchronization technology using OFDM orthogonal frequency division multiplexing technology

作　　者：张朝贤[1] 徐帆 ZHANG Chao-xian;XU Fan(Xiamen University Tan Kan Kee College,Zhangzhou 363105,China;Fuzhou University,Fuzhou 350108,China)

机构地区：[1]厦门大学嘉庚学院,福建漳州363105 [2]福州大学,福建福州350108

出　　处：《舰船科学技术》2022年第16期134-137,共4页Ship Science and Technology

摘　　要：在船舶无线通信系统中,信号受海面反射效应、衍射效应和阴影效应等干扰,会出现无线通信信号强度的衰减,甚至出现信号失真。为了解决这一问题,本文采用一种基于OFDM正交频分复用技术的信号调制解调技术,开发一种无线通信的同步技术,不仅提高了船舶无线通信数据帧的同步特性,也提高了无线数据传输的准确度。In the ship wireless communication system, the signal will be interfered by the sea surface reflection effect,diffraction effect and shadow effect, and the strength of the wireless communication signal will be attenuated, and even the signal will be distorted. In order to solve this problem, this paper adopts a signal modulation and demodulation technology based on DFDM orthogonal frequency division multiplexing technology, and develops a synchronization technology of wireless communication. It not only improves the synchronization characteristics of data frames of ship wireless communication,but also improves the accuracy of wireless data transmission.

关 键 词：OFDM正交频分复用 无线通信 衍射效应 数据帧同步 

分 类 号：U633.24[交通运输工程—船舶与海洋工程]