船舶之间、船舶与岸基之间的通信以无线信号为主，在船舶VAST、VHF等无线通信网络中，信号的调制与模式识别技术非常关键，决定了通信系统的信号传输精度，本文分别介绍船舶通信系统模拟信号调制和数字信号调制技术，结合时域与频域的分析方法，研究通信系统信号采集稳定性测试的模式识别技术，不仅能够提高船舶无线通信系统的信号调制和解调效率，而且对于信号的特征提取、后处理有重要意义。
The communication between ships at sea and between ships and shoreline is dominated by wireless signals. In VAST, VHF and other wireless communication networks, signal modulation and pattern recognition technology are very key, which determines the signal transmission accuracy of the communication system. This paper introduces analog signal modulation and digital signal modulation technologies of the ship communication system. Combining the analysis methods of time domain and frequency domain, this paper studies the pattern recognition technology of signal acquisition stability test of communication system, which can not only improve the signal modulation and demodulation efficiency of Marine wireless communication system, but also has important significance for signal feature extraction and post-processing.
2023,45(8): 150-153 收稿日期：2022-09-15
DOI：10.3404/j.issn.1672-7649.2023.08.029
分类号：U665.2
作者简介：谷军闪(1988-),女,硕士,讲师,主要从事电子信息测试计量技术研究
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