Design of Adaptive Filtering Algorithm and Its Application in Chaotic Echo Cancellation

作     者：Bo Yang 1 , Jian Feng 2 1. School of Electronic and Information Engineering, Southwest University, Chongqing 400715, China2. Department of Cardiology, First Affiliated Hospital, Luzhou Medical College, Luzhou 646000, China 

会议名称：《第24届中国控制与决策会议》

会议日期：2012年

学科分类：11[军事学] 0810[工学-信息与通信工程] 1105[军事学-军队指挥学] 08[工学] 081002[工学-信号与信息处理] 110503[军事学-军事通信学] 

基　　金：supported by the Fundamental Research Funds for the Central Universities under grant (XDJK2011C058 ) 

关 键 词：Echo Cancellation Adaptive Filtering Algorithm Chaos Signal to Noise Ratio 

摘      要：An adaptive filtering algorithm is designed in this study, and the convergence of the algorithm is analyzed. The new algorithm is used to cancel echo in the chaotic communication systems experiencing echo channels. The results of computer simulation indicate that the new algorithm has faster convergence speed and higher accuracy of computation than that of the old one. In addition, the new algorithm is more stable in the case of low signal to noise ratio （SNR） .