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杭州电子科技大学通信工程学院,浙江 杭州 310018
[ "周雪芳(1976- ),女,江西丰城人,博士,杭州电子科技大学副教授、硕士生导师,主要研究方向为光混沌保密通信、光纤传感技术和光纤激光器等。" ]
[ "王飞(1999- ),男,河北衡水人,杭州电子科技大学硕士生,主要研究方向为光混沌同步保密通信、光通信、非线性光学等。" ]
[ "杨国伟(1984- ),男,浙江杭州人,博士,杭州电子科技大学副教授、硕士生导师,主要研究方向为无线光通信、神经网络算法。" ]
[ "毕美华(1981- ),女,山东济宁人,博士,杭州电子科技大学副教授、硕士生导师,主要研究方向为新型光纤传输系统、接入网系统安全算法等。" ]
[ "许蒙蒙(1992- ),女,河南商丘人,博士,杭州电子科技大学讲师,主要研究方向为光通信。" ]
[ "胡淼(1982- ),男,浙江温州人,博士,杭州电子科技大学教授、博士生导师,主要研究方向为视觉感知、激光雷达、光电对抗、遥感卫星等。" ]
收稿日期:2024-02-02,
修回日期:2024-06-12,
纸质出版日期:2024-07-25
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周雪芳,王飞,杨国伟等.基于全光混沌注入双环电光相位反馈环的混沌保密通信系统研究[J].通信学报,2024,45(07):138-147.
ZHOU Xuefang,WANG Fei,YANG Guowei,et al.Research on chaotic secure communication system based on all optical chaos injection double-loop electro-optical phase feedback loop[J].Journal on Communications,2024,45(07):138-147.
周雪芳,王飞,杨国伟等.基于全光混沌注入双环电光相位反馈环的混沌保密通信系统研究[J].通信学报,2024,45(07):138-147. DOI: 10.11959/j.issn.1000-436x.2024125.
ZHOU Xuefang,WANG Fei,YANG Guowei,et al.Research on chaotic secure communication system based on all optical chaos injection double-loop electro-optical phase feedback loop[J].Journal on Communications,2024,45(07):138-147. DOI: 10.11959/j.issn.1000-436x.2024125.
针对现有混沌保密光通信系统时延特征隐藏所需反馈增益系数较大这一问题,设计了一种基于全光混沌注入双环电光相位反馈环的混沌保密通信系统。首先,由全光反馈产生光混沌并将其耦合至2个电光相位混沌反馈环中。然后,通过相位调制的方式实现信息与混沌载波的非线性耦合并参与混沌载波的生成。最后,在检测端通过光混沌同步实现信号的解密。借助MATLAB软件仿真分析了系统中混沌信号的复杂度、时延特征隐藏、同步性、鲁棒性和通信性能。仿真结果表明,所设计的混沌保密通信系统在较小的反馈系数时具有较高的复杂度且时延特征得到较好的隐藏。
To solve the problem of large feedback gain coefficient required for delay feature hiding in existing chaotic secure laser communication systems
a chaotic secure communication system based on all optical chaos injection double-loop electro-optical phase feedback loop was designed. Firstly
optical chaos was generated by all optical feedback and coupled to two electro-optic phase chaos feedback loops. Then
the nonlinear coupling of information and chaotic carrier was achieved through phase modulation to participate in the generation of chaotic carrier. Finally
the signal was decrypted by optical chaos synchronization at the detection end. The complexity
TDS hiding
synchronization
robustness and communication performance of chaotic signals in the system were analyzed by MATLAB software. The results demonstrate that the designed chaotic secure communication system has higher complexity and the TDS are completely hidden when the feedback coefficient is small.
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