基于Colpitts电路的噪声信道混沌通信系统两种同步方案的性能比较

Fifth World Congress on Intelligent Control and Automation (IEEE Cat. No.04EX788) Pub Date : 2004-06-15 DOI:10.1109/WCICA.2004.1340842

Zhiguo Shi, J. Huangfu, L. Ran

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引用次数: 11

摘要

针对两个耦合的混沌Colpitts电路，研究了Pecora-Carroll方案和误差反馈方案的同步性能。数学推导和数值仿真表明，当混沌信号在存在加性高斯白噪声源和信道滤波器的噪声信道上传输时，误差反馈同步方案优于Pecora-Carroll同步方案。结果表明，采用误差反馈同步方案可以较好地恢复嵌入在混沌信号中的信息，该信号从发送端到接收端通过噪声信道传输。

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Performance comparison of two synchronization schemes for Colpitts circuits based chaotic communication system over noise channel

The synchronization performance of the Pecora-Carroll scheme and the error feedback scheme was investigated for two coupled chaotic Colpitts circuits. Both the mathematical derivation and numeric simulations indicate that the error feedback synchronization scheme outperforms the Pecora-Carroll synchronization scheme when the chaotic signal is transmitted over a noisy channel in which there exist an additive white Gaussian noise source and a channel filter. As a result, the information embedded in the chaotic signal, which passes a noisy channel from the transmitter to the receiver, can be recovered in a better way when the error feedback synchronization scheme is used.

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Fifth World Congress on Intelligent Control and Automation (IEEE Cat. No.04EX788)

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