| 一种保密通信系统的研究 |
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| 引用本文： | 贺利芳,张刚,张天骐. 一种保密通信系统的研究[J]. 电信科学, 2012, 28(2): 99-103 |
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| 作者姓名： | 贺利芳 张刚 张天骐 |
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| 作者单位： | 重庆邮电大学信号与信息处理重庆市重点实验室 重庆400065 |
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| 基金项目： | 国家自然科学基金资助项目(No.61071196),国家自然科学基金—中国工程物理研究院NSAF联合基金资助项目(No.10776040);教育部新世纪优秀人才支持计划基金资助项目(No.NCET-10-0927);信号与信息处理重庆市市级重点实验室建设基金资助项目(No.2009CA2003);重庆市自然科学基金资助项目(No.2009BB2287,No.2010BB2398,No.2010BB2411) |
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| 摘 要： | 基于混沌同步的保密通信方式相比传统保密通信方式有很大的优势,发展前景光明。通常混沌同步保密通信方式用混沌掩盖来实现,需要两个信道,其中一个信道传输混沌同步信号使系统保持同步,另一路则传输用混沌信号掩盖后的保密信息。在频谱资源日益紧张的情况下,由于这种通信方式对于信道资源的利用率相对较低,因此经济效益较差。本文提出了一个新的系统,用一个信道轮动传输信息和同步信号,对系统进行了详细分析,重点研究了系统传输的时隙分配并给出了仿真验证,证明了该系统能极大地提高信道利用率,同时对该系统的实际应用作了详细分析。
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| 关 键 词： | 保密通信 混沌掩盖 轮动 |
Research on a Security Communication Scheme |
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| He Lifang , Zhang Gang , Zhang Tianqi. Research on a Security Communication Scheme[J]. Telecommunications Science, 2012, 28(2): 99-103 |
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| Authors: | He Lifang Zhang Gang Zhang Tianqi |
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| Affiliation: | (Chongqing Key Laboratory of Signal and Information Processing, Chongqing University of Posts and Telecommunications,Chongqing 400065,China) |
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| Abstract: | The secure communications based on chaos synchronization have more great advantages than the traditional communications.Normally,the secure communications using chaos synchronization are achieved by chaotic mask.Two channels are required in this mode,one channel transmits signal to keep the system synchronized,while the other channel transmits confidential information after masked with the chaotic signal.In the case the growing shortages of spectrum resources,channel resource utilization in this means of communication is relatively low and therefore less cost-effective.A new system is proposed with a circled channel to transmit information and synchronous signal.The system is analyzed in detail,focusing on the time slot allocation and the simulation verification.It proves that the system can greatly improve the channel efficiency and the practical application of the system. |
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| Keywords: | secure communication chaotic mask circle |
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