PARTIALLY BLIND EXTRACTION OF CONTINUOUS CHAOTIC SIGNALS FROM A LINEAR MIXTURE  

作　　者：Hu Wen Liu Zhong Li Chunbiao Wang Dechun Zhang Gong 

机构地区：[1]College of Information Science ＆ Technology University of Aeronautics ＆ Astronautics Nanjing 210016 China [2]Department of Electronic Engineering Nanjing University of Science and Technology Nanjing 210094 China [3]Jiangsu Institute of Economic ＆ Trade Technology Nanjing 210007 China [4]Nanjing Research Institute of Electronics Technology Nanjing 210013 China

出　　处：《Journal of Electronics(China)》2009年第5期600-607,共8页电子科学学刊（英文版）

基　　金：Supported by the National Natural Science Foundation of China (No.60472059);the Aeronautical Science Foundation of China (2008ZC 52026)

摘　　要：In this paper, we address the problem of blind extraction and separation of a continuous chaotic signal from a linear mixture consisting of some chaotic signal and/or random signals. The problem of blind extraction is firstly formulated as a problem of the synchronization-based parameter estimation. Then an efficient least square based parameter estimation method is introduced to determine the desired extracting vector. The proposed blind signal extraction scheme is applicable to blind separation of chaotic signals by formulating the separation problem as the extraction of each chaotic source. Numerical simulation shows that the proposed approach can blindly extract and separate the desired chaotic signals and it is also robust to measurement noise.In this paper, we address the problem of blind extraction and separation of a continuous chaotic signal from a linear mixture consisting of some chaotic signal and/or random signals. The problem of blind extraction is firstly formulated as a problem of the synchronization-based parameter estimation. Then an efficient least square based parameter estimation method is introduced to determine the desired extracting vector. The proposed blind signal extraction scheme is applicable to blind separation of chaotic signals by formulating the separation problem as the extraction of each chaotic source. Numerical simulation shows that the proposed approach can blindly extract and separate the desired chaotic signals and it is also robust to measurement noise.

关 键 词：Blind extraction Chaotic signal SYNCHRONIZATION 

分 类 号：TN911.7[电子电信—通信与信息系统] TQ028[电子电信—信息与通信工程]