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为克服信道噪声、系统参数误配及多用户干扰对混沌通信系统的影响,本文组合不同的状态空间模型并结合盲提取算法,提出了一种双无先导卡尔曼滤波器 (dual unscented Kalman filter, DUKF),以实现多用户的混沌通信.仿真结果表明,在多输入多输出信道的多用户通信环境下,该算法有较快的收敛速度,并能有效地实现多用户的混沌通信.
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关键词:
- 混沌通信 /
- 多输入多输出 /
- 双无先导卡尔曼滤波器 /
- 盲提取
To reduce effectively channel noise, parameter mismatch, and inter-user interference, a dual unscented Kalman filter (DUFK) algorithm with combining blind extraction algorithm and different state space models for chaotic communication systems with multiuser is proposed. The simulation results indicate that the algorithm has a faster convergence speed and can realize effectively multiuser communications in a multi-input multi-output channel.-
Keywords:
- chaotic communications /
- multi-input multi-output /
- dual unscented Kalman filter /
- blind extraction
[1] Pecora L M, Carroll T L 1990 Phys. Rev. Lett. 64 821 Zhang Q J, Lu J A 2008 Chin. Phys. B 17 492 Li R H, Chen W S, Li S 2010 Chin. Phys. B 19 010508 Carroll T L, Pecora L M 1993 IEEE CIR-II 40 646 Drake D F, Williams D B 1994 Proceedings of IEEE 6th Digital Signal Processing Workshop Yosemite National Park, CA, USA, October 2—5, 1994 p75 Sobiski D J, Thorp J S 1998 IEEE CIRC-I 45 142 Wang S Y, Feng J C 2008 Journal of Jilin University (Engineering and Technology Edition) 38 1469 (in Chinese) [王世元、冯久超 2008 吉林大学学报(工学版) 38 1469] Chen H B, Feng J C, Fang Y 2008 Chin. Phys.Lett. 25 405 Li X X, Feng J C 2007 Acta Phys. Sin. 56 701 (in Chinese) [李雪霞、冯久超 2007 56 701] Feng J C,Tse C K 2007 Reconstruction of Chaotic Signals with Applications to Chaos-based Communications (Beijing:Tsinghua University Press) Feng J C 2010 Chaotic Signal and Information Processing (Beijing:Tsinghua University Press) (in Chinese) [冯久超 2010混沌信号与信息处理 (北京:清华大学出版社)] Ali Z, Deriche M, Andalusi A 2009 IFIP International Conference on Wireless and Optical Communications Networks, Cairo, Egypt, April 28—30, 2009 p295 Julier S J, Uhlmann J K 2004 P. IEEE 92 401 Hao Y L, Xiong Z L, Sun F, Wang X G 2007 Proceedings of the 2007 IEEE International Conference on Mechatronics and Automation Harbin, China, August 5—8, 2007 p895
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[1] Pecora L M, Carroll T L 1990 Phys. Rev. Lett. 64 821 Zhang Q J, Lu J A 2008 Chin. Phys. B 17 492 Li R H, Chen W S, Li S 2010 Chin. Phys. B 19 010508 Carroll T L, Pecora L M 1993 IEEE CIR-II 40 646 Drake D F, Williams D B 1994 Proceedings of IEEE 6th Digital Signal Processing Workshop Yosemite National Park, CA, USA, October 2—5, 1994 p75 Sobiski D J, Thorp J S 1998 IEEE CIRC-I 45 142 Wang S Y, Feng J C 2008 Journal of Jilin University (Engineering and Technology Edition) 38 1469 (in Chinese) [王世元、冯久超 2008 吉林大学学报(工学版) 38 1469] Chen H B, Feng J C, Fang Y 2008 Chin. Phys.Lett. 25 405 Li X X, Feng J C 2007 Acta Phys. Sin. 56 701 (in Chinese) [李雪霞、冯久超 2007 56 701] Feng J C,Tse C K 2007 Reconstruction of Chaotic Signals with Applications to Chaos-based Communications (Beijing:Tsinghua University Press) Feng J C 2010 Chaotic Signal and Information Processing (Beijing:Tsinghua University Press) (in Chinese) [冯久超 2010混沌信号与信息处理 (北京:清华大学出版社)] Ali Z, Deriche M, Andalusi A 2009 IFIP International Conference on Wireless and Optical Communications Networks, Cairo, Egypt, April 28—30, 2009 p295 Julier S J, Uhlmann J K 2004 P. IEEE 92 401 Hao Y L, Xiong Z L, Sun F, Wang X G 2007 Proceedings of the 2007 IEEE International Conference on Mechatronics and Automation Harbin, China, August 5—8, 2007 p895
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