A Method for Noise Reduction to Differential Chaos Shift Keying

摘要：

This paper proposed a method for noise reduction to DCSK communications systems using weighted least square support vector machine (WLS-SVM). By exploiting the chaotic dynamics involved, the short-term robust estimation of chaotic signals can be obtained by first using a support vector machine with a least squares cost function and, then associating weighted values to the error variables based upon the resulting error variables from the first step. Computer simulation for the noise performance show that the noise reduction technique improves the overall noise performance in contrast to theoretical noise performance of DCSK communications systems.

作者: Liu Qiang Xiaodong Li

作者单位: No. 30 Institute of CETC Chengdu, Sichuan, China, 610041 University of Electronic Science and Technology Chengdu, Sichuan, China, 610054

会议类型: 国际会议

会议名称: 2006 International Conference on Communications,Circuits and Systems(第四届国际通信、电路与系统学术会议)

会议地点: 广西桂林

会议语种:英文

页码: 781-784

在线出版日期: 2006-06-25（万方平台首次上网日期，不代表论文的发表时间）