| 一种新的混沌数字保密通信实现方案 |
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| 引用本文： | 王佳楠,丁群.一种新的混沌数字保密通信实现方案[J].通信技术,2011,44(2):75-77. |
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| 作者姓名： | 王佳楠 丁群 |
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| 作者单位： | 黑龙江大学电子工程学院,黑龙江省普通高等学校电子工程重点实验室,黑龙江,哈尔滨,150080 |
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| 基金项目： | 国家自然科学基金资助项目，黑龙江大学学生学术科技创新基金 |
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| 摘 要： | 针对差分混沌键控（DCSK）的保密性低,数据传输速率不高等缺点,这里设计并研究了一种新的混沌键控调制方式—调频相关延迟键控（FM-CDSK）通信方案,该方案同时兼具CDSK和FM-DCSK的优点。通过仿真分析验证了该系统在数据传输速率和保密性等方面较DCSK和CDSK都有所提高,传输速率更是比原有键控方式提高了2倍,并且利用该混沌调制方式很好的实现了图像信号的保密传输,验证了该系统在数字保密通信中的可实现性。
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| 关 键 词： | 混沌数字保密通信 混沌键控 调频相关延迟键控 |
Implementation of a Novel FM-CDSK Chaotic Digital Secure Communication System |
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| WANG Jia-nan,DING Qun.Implementation of a Novel FM-CDSK Chaotic Digital Secure Communication System[J].Communications Technology,2011,44(2):75-77. |
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| Authors: | WANG Jia-nan DING Qun |
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| Affiliation: | WANG Jia-nan,DING Qun(Key laboratory of Electronic Engineering,Colleges of Heilongjiang Province,Electronic Engineering College,Heilongjiang University,Harbin Helongjiang 150080,China) |
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| Abstract: | For the low security and low data transfer rate of DCSK(differential chaos shift keying),a novel chaotic shift keying digital modulation scheme-FM-CDSK(frequency-modulated differential chaotic shift keying) is designed and studied.The scheme has the merits of both CDSK and FM-DCSK.The simulation analysis of data transmission rate and confidentiality indicates that this new scheme is of much better performance than DCSK and CDSK,and the transmission rate is twice as much as original shift keying schemes.Mean... |
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| Keywords: | chaotic digital secure communication chaotic shift keying FM-CDSK |
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