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.
2022,44(16): 134-137 收稿日期：2022-01-26
DOI：10.3404/j.issn.1672-7649.2022.16.028
分类号：U633.24
作者简介：张朝贤(1983-)，男，硕士，讲师，研究方向为下一代移动通信及分布式仿真计算
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