混乱的
稳健性(进化)
计算机科学
键控
误码率
控制理论(社会学)
噪音(视频)
电子工程
电信
工程类
人工智能
生物化学
基因
图像(数学)
频道(广播)
化学
控制(管理)
作者
Xiaojing Gao,Mengfan Cheng,Lei Deng,Minming Zhang,Songnian Fu,Deming Liu
出处
期刊:Optics Express
[The Optical Society]
日期:2020-03-30
卷期号:28 (8): 10847-10847
被引量:28
摘要
A chaotic-shift-keying (CSK) scheme is designed based on a chaos system with electro-optical hybrid time delayed feedback structure. By switching the time delay parameter as a message feeding method, the generated chaotic signal is no longer suffered from return map attack, which is an innate vulnerability of traditional CSK. When the coupling of the seed electrical chaotic system and the nonlinear optical time delay feedback loop is carefully weighed, this CSK scheme shows a good robustness in terms of handling noise for transmitting digital signals. By demodulating the digital signals with the chaotic coherent detection method, a bit error rate of 6×10 −4 is achieved at the signal-to-noise ratio of 10dB in the simulation. The proposed method has a promising application prospect in some harsh environments.
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