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Extracting the time delay signature of coupled optical chaotic systems by mutual statistical analysis

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Abstract

The time delay (TD) signature is a critical parameter in optical chaos-based applications. The feasibility of extracting the TD has been a crucial issue that significantly influences the performance of these applications. In this paper, statistical analyses have been conducted to extract the TD signatures from different types of coupled optical chaos systems. More specifically, a mutually coupled semiconductor laser chaotic system, an intensity-coupled electro-optic chaotic system, and a phase-coupled electro-optic chaotic system are studied in detail. These systems are proposed to resist the attack strategies against the TD signature. They are proved to be effective under statistical analyzes, such as the selfcorrelation function (SF) and mutual information (MI). However, only a single output has been considered for the attack process in the existing research. We demonstrated that the TD signature can still be extracted by analyzing the mutual statistical relationship between the different output signals which are generated simultaneously by the coupled system. Furthermore, we find that the extraction strategy is effective for a wide parameter range in these schemes.

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DOI:doi 10.1007/s12200-017-0706-8

所属栏目:RESEARCH ARTICLE

基金项目:This work was supported by the National NaturalScience Foundation of China (NSFC) (Grant No. 61505061) and the NationalHigh Technology Research and Development Program (“863” Program) ofChina (Nos. 2015AA016904, and 2015AA015502).

收稿日期:2017-02-20

修改稿日期:2017-07-13

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Xinhua ZHU:Next Generation Internet Access National Engineering Laboratory (NGIA), School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan 430074, China
Mengfan CHENG:Next Generation Internet Access National Engineering Laboratory (NGIA), School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan 430074, China
Lei DENG:Next Generation Internet Access National Engineering Laboratory (NGIA), School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan 430074, China
Xingxing JIANG:Next Generation Internet Access National Engineering Laboratory (NGIA), School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan 430074, China
Deming LIU:Next Generation Internet Access National Engineering Laboratory (NGIA), School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan 430074, China

联系人作者:Mengfan CHENG(chengmf@mail.hust.edu.cn)

备注:Xinhua Zhu received the B.S. and M.S. degrees in School of Optical and Electronic Information from the Huazhong University of Science and Technology, Wuhan, China, in 2014 and 2017, respectively. Now, he is an assistant engineer in Huawei. His research interests includes chaotic systems and secure communications. Mengfan Cheng received the B.S. degree in information engineering, and the M.S. and Ph.D. degrees in computer science from the Huazhong University of Science and Technology, Wuhan, China, in 2005, 2007 and 2012, respectively. He was working as a Postdoctoral Researcher from 2013 to 2015. Now, he is a Lecturer in the School of Optical and Electronic Information, Huazhong University of Science and Technology. His research interests include fiber-optic communications, physical layer security, chaotic encryption, and chaotic synchronization.

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引用该论文

Xinhua ZHU,Mengfan CHENG,Lei DENG,Xingxing JIANG,Deming LIU. Extracting the time delay signature of coupled optical chaotic systems by mutual statistical analysis[J]. Frontiers of Optoelectronics, 2017, 10(4): 378-387

Xinhua ZHU,Mengfan CHENG,Lei DENG,Xingxing JIANG,Deming LIU. Extracting the time delay signature of coupled optical chaotic systems by mutual statistical analysis[J]. Frontiers of Optoelectronics, 2017, 10(4): 378-387

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