| 基于改进的差分混沌键控（DCSK）保密系统 |
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| 引用本文： | 李波,张刚,张天骐.基于改进的差分混沌键控（DCSK）保密系统[J].数字通信,2013(1):74-77. |
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| 作者姓名： | 李波 张刚 张天骐 |
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| 作者单位： | 重庆邮电大学，重庆 400065 |
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| 摘 要： | 差分混沌键控(differential chaos shift keying,DCSK)利用了混沌信号类噪声的特性,采用非相干接收,避免了混沌同步问题。针对DCSK的保密性问题,提出一种改进的DCSK方案,通过仿真验证该方案的可行性,并对其性能进行深入分析。结论:改进的DCSK系统与传统的DCSK系统相比,误码率更低,保密性也更好。
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| 关 键 词： | 保密通信 差分混沌键控 调制 |
| 收稿时间： | 9/8/2012 12:00:00 AM |
Secure communication based on improved differential chaos shift keying |
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| LI Bo,ZHANG Gang,ZHANG Tianqi.Secure communication based on improved differential chaos shift keying[J].Digital Communication,2013(1):74-77. |
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| Authors: | LI Bo ZHANG Gang ZHANG Tianqi |
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| Affiliation: | (Chongqing University of Posts and Telecommunications,Chongqing 400065,P.R.China) |
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| Abstract: | The DCSK(differential chaos shift keying) has the noise-like feature of chaotic signals, which uses non-coherent reception and avoids chaotic synchronization. Therefore, in view of the secure problem, a new DCSK scheme is proposed. The system is proved to be feasible in communications by simulations, and the performances of the system are deeply analyzed. Conclusion: comparing the improved DCSK system with the conventional DCSK system, the first one has a lower error rate, and the confidentiality is better. |
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| Keywords: | secure communication differential chaos shift keying modulation |
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