高技术通讯2016，Vol.26Issue(12)：1006-1013,8.DOI:10.3772/j.issn.1002-0470.2016.12.010
新SH-COS混沌弱信号检测系统设计
Design of a new SH-COS chaotic system for weak signal detection
摘要
Abstract
The chaos theory was applied to weak signal detection,and the SH-COS,a new chaotic circuit based weak signal detection system synthesizing a 3D chaos and a COS function was designed.The SH-COS system's dynamic characteristics were theoretically analyzed,and its circuit simulation analyses were conducted with the software of Matlab and Multisim.The analyzing results show that compared with the performance of the Duffing chaos weak signal detection system that is widely discussed currently and the phase locked amplifier,the new SH-COS system has the features of strong anti noise,wide area diversity in signal detection and high detection accuracy during the measurement process,which can make up their shortcomings of unstable large periodic state and difficulty in distinguishing chaos and periodic state.The large periodic state of the new system's output is convergent,and the correctness of the design method is verified through the simulation results.This shows that the new system has the better performance in weak signal detection,and is more suitable for practical engineering applications.关键词
弱信号检测/Duffing系统/高阶混沌系统/混沌电路/Matlab仿真Key words
weak signal detection/Duffing system/high-dimensional chaotic system/chaotic circuit/Matlab simulation引用本文复制引用
宋菲菲,魏自明,习敬伟..新SH-COS混沌弱信号检测系统设计[J].高技术通讯,2016,26(12):1006-1013,8.基金项目
863计划(AA806XXX)资助项目. （AA806XXX）
