电子学报2016，Vol.44Issue(6)：1450-1457,8.DOI:10.3969/j.issn.0372-2112.2016.06.028
一种基于Duffi ng系统的信号检测与参数估计新方法
A New SignaI Detection and Esti mation Method by Using Duffing Syste m
摘要
Abstract
In order to give a complete signal detection and estimation method based on Duffing system,this paper u-ses the coupling Duffing oscillator,and introduces the variable scale method,to detect and estimate the sinusoidal signal with unknown frequency and arbitrary phrase just by one Duffing oscillator.Besides,this paper puts forward a simplified method which is based on chaotic oscillator for estimating the amplitude and phase of the signal to be measured,and integrated meth-od principle and the simulation experiment result proves that this method has high estimation precision,strong ability to resist noise interference and the advantages of good real-time performance.Finally,using a simulation result of a analog signal for verifying the availability and accuracy of the detection and estimation method is proposed.关键词
混沌振子/变尺度/正弦信号检测/低信噪比/参数估计Key words
chaotic oscillator/variable scale/sine signal detection/low signal to noise ratio/high precision estimation分类
信息技术与安全科学引用本文复制引用
王慧武,丛超..一种基于Duffi ng系统的信号检测与参数估计新方法[J].电子学报,2016,44(6):1450-1457,8.基金项目
国家科技部2014年度转制科研院所创新能力专项资金 （）
