硬件加密的扩频通信方案

萧宝瑾; 仝海丽; 张建忠; 张朝霞; 王云才

doi:10.7498/aps.60.080506

摘要

提出了一个利用混沌激光源产生1 Gbit/s的随机序列作为扩频码的方案.理论分析表明,该随机序列克服了伪随机序列的周期性,在扩大扩频码容量的同时实现了扩频码可变,提高了通信安全性. 利用Simulink软件对该扩频系统进行仿真.结果表明,当信息速率一定时,扩频增益越大,误码率越低,与理论结果相符.与传统的扩频系统相比,该方案在提高系统抗干扰能力的同时也增强了保密性.

关键词:

The scheme of 1 Gbit/s random sequence generated by chaotic laser as spreading code is proposed. Theoretical analysis indicates that the pseudo random sequence exhibited periodic behavior is eliminated by the random sequence and the capability of spreading code is enlarged. Meanwhile, the communication security can be improved by variable spreading code. The corresponding spread spectrum system is numerically simulated by Simulink software and the results demonstrate that the greater the used spreading gain, the lower the obtained error rate will be when the information speed is constant, which is consistent with the theoretical results. The anti-jamming ability of the spread spectrum system is strengthened and the security is enhanced compared with those of the traditional spreading system.

Keywords:

作者及机构信息

1.
太原理工大学信息与通信工程系,太原 030024;

2.
太原理工大学物理与光电工程系,太原 030024;

3.
山西大学量子光学与光量子器件国家重点实验室,太原 030006

基金项目: 国家自然科学基金(批准号:60927007, 60872019)和量子光学与光量子器件国家重点实验室基金(批准号:200903)资助的课题.

Authors and contacts

1.
Department of Information and Communication, Taiyuan University of Technology, Taiyuan 030024, China;

2.
Department of Physics and Optoelectronics, Taiyuan University of Technology, Taiyuan 030024, China;

3.
State Key Laboratory of Quantum Optics and Quantum Optics Devices, Shanxi University, Taiyuan 030006, China

参考文献

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施引文献

[1]	Kurosawa K, Sato F, Sakata T, Kishimoto W 2000 IEEE Trans. Inform. Theory 46 694
[2]
[3]	Zhong Z, Zhao X T, Ren G H 2009 Inform. Technol. J. 8 1076
[4]
[5]	Wang X G, Zhan M, Gong X F, Lai C H, Lai Y C 2005 Phys. Lett. A 334 30
[6]	Yu Z B, Feng J C 2008 Acta Phys. Sin. 57 1409 (in Chinese)[余振标、冯久超 2008 57 1409]
[7]
[8]
[9]	Petrie C S, Connelly J A 2000 IEEE Trans. Circuits Syst. I 47 615
[10]	Bucci M, Germani L, Luzzi R, Trifiletti A, Varanonuovo M 2003 IEEE Trans. Computers 52 403
[11]
[12]	Liao J, Liang C, Wei Y J, Wu L A, Pan S H 2001 Acta Phys. Sin. 50 467 (in Chinese) [廖静、梁创、魏亚军、吴令安、潘少华 2001 50 467]
[13]
[14]	Feng M M, Qin X L, Zhou C Y, Xiong L, Ding L E 2003 Acta Phys. Sin. 52 72 (in Chinese) [冯明明、秦小林、周春源、熊利、丁良恩 2003 52 72]
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[18]
[19]	Zhou Q, Hu Y, Liao X F 2008 Acta Phys. Sin. 57 5413 (in Chinese) [周庆、胡月、廖晓峰 2008 57 5413]
[20]	Dynes J F, Yuan Z L, Sharpe A W, Shields A J 2008 Appl. Phys. Lett. 93 031109
[21]
[22]
[23]	Wang Y C, Tang J H, Zhang M J 2007 Chinese Patent ZL200710062140.1 (in Chinese) [王云才、汤君华、张明江 2007 中国发明专利 ZL200710062140.1]
[24]	Uchida A, Amano K, Inoue M, Hirano K, Naito S, Someya H, Owada I, Kurashige T, Shiki M, Yoshimori S, Yoshimura K, Davis P 2008 Nat. Photon. 2 728
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[31]
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[34]	Zhang J B, Zhang J Z, Yang Y B, Liang J S, Wang Y C 2010 Acta Phys. Sin. 59 7679 (in Chinese) [张继兵、张建忠、杨毅彪、梁君生、王云才 2010 59 7679]
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