Performance comparison of two synchronization schemes for Colpitts circuits based chaotic communication system over noise channel
Performance comparison of two synchronization schemes for Colpitts circuits based chaotic communication system over noise channel
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DOI：
10.1109/wcica.2004.1340842
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发表时间：
2004-06
期刊：
影响因子：
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通讯作者：
Zhiguo Shi;J. Huangfu;L. Ran
中科院分区：
文献类型：
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作者：
Zhiguo Shi;J. Huangfu;L. Ran
研究了Pecora-Carroll方案和误差反馈方案对两个耦合混沌Colpitts电路的同步性能。数学推导和数值仿真均表明，在存在加性白色高斯噪声源和信道滤波器的噪声信道中传输混沌信号时，误差反馈同步方案优于Pecora-Carroll同步方案。因此，嵌入在混沌信号中的信息，它通过一个嘈杂的信道从发送器到接收器，可以恢复在一个更好的方式时，使用的误差反馈同步方案。
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.