| 甚低频发射系统同步调谐研究 |
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| 引用本文： | 金国庆,董颖辉.甚低频发射系统同步调谐研究[J].现代电子技术,2011,34(10):82-84. |
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| 作者姓名： | 金国庆 董颖辉 |
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| 作者单位： | 海军工程大学电子工程学院,湖北武汉,430033 |
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| 基金项目： | 国家"863"计划资助项目 |
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| 摘 要： | 甚低频通信受发射天线固有带宽限制，信息速率低，为了提高甚低频通信速率，采用了不同于载频调谐的同步调谐方法，理论上分析并计算了在不同信息速率下甚低频发射机载频调谐系统和同步调谐系统的输出信号谱及信号传输效率。结果表明采用同步调谐可使天线系统在固有带宽不变的条件下提高了甚低频发射天线系统的有效带宽，从而提高了甚低频通信系统的信息传输速率和传输效率。
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| 关 键 词： | 同步调谐 甚低频 传输效率 MSK |
Synchronization Tuning of VLF Transmitting System |
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| JIN Guo-qing,DONG Ying-hui.Synchronization Tuning of VLF Transmitting System[J].Modern Electronic Technique,2011,34(10):82-84. |
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| Authors: | JIN Guo-qing DONG Ying-hui |
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| Affiliation: | JIN Guo-qing,DONG Ying-hui(College of Electronic Engineering,Naval University of Engineering,Wuhan 430033,China) |
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| Abstract: | Very low frequency communication is limited by the transmitting antenna bandwidth,whose symbol rate is very low.In order to improve VLF symbol rate,a synchronization tuning method different from carrier frequency tuning is used.The spectrum for output signal and transfer efficiency for signal of VLF transmitting system and synchronous tuning system under the carrier frequency tuning system are analyzed.The results indicate that the synchronous tuning method can improve the antenna's effective bandwidth unde... |
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| Keywords: | synchronization turning VLF transfer efficiency MSK |
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