GMSK在舰艇短波数据链中的应用研究
PPLICATION AND RESEARCH OF THE GMSK MODULATION IN NAVAL SHORTWAVE DATA LINK
本文通过对GMSK调制的频谱特点和舰艇海上短波数据链远距离通信信道实际特点情况分析得出了GMSK用于改善舰艇短波数据链稳定性的优势所在。同时，以Watterson短波信道模型为基础，结合海上短波通信的环境特点，提出了基于MATLAB仿真的舰艇短波数据链仿真信道模型。然后利用所提出的短波传输信道模型，以美国和北约的新一代Link-22数据链为系统仿真对象，在MATLAB-SIMULINK中仿真得出GMSK、QPSK和DQPSK三种调制方式下短波数据链通信系统的误码率曲线。最后，通过对仿真结果的分析得出采用GMSK调制能有效的降低短波数据链通信系统的传输误码率和提高频谱效率。
Based on the analysis of GMSK modulation spectrum characters and the actual situation of the long-distance communication of the naval shortwave data link, the advantages of the GMSK modulation using in naval shortwave data link are showed in this paper. A shortwave channel model which is appropriate to the simulation of the naval shortwave data link in MATLAB is addressed on the basis of the Watterson model. Compared with the result of the simulation of the QPSK and DQPSK which are used in Link-22 at present, it can be learned that GMSK modulation is efficient not only to reduce the symbol error rate, but also to promote the efficiency of the shortwave spectrum.
吴仲戈
军事技术无线通信通信
GMSK数据链短波信道
GMSKdata linkshortwave channel
吴仲戈.GMSK在舰艇短波数据链中的应用研究[EB/OL].(2009-02-11)[2025-06-24].http://www.paper.edu.cn/releasepaper/content/200902-504.点此复制
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