计算机应用研究2011，Vol.28Issue(2)：677-680,4.DOI:10.3969/j.issn.1001-3695.2011.02.076
基于Duffing振子的梯形增幅波弱信号检测
Weak trapezoidal increasing signal detection based on Duffing oscillator
摘要
Abstract
In order to detect non-periodic trapezoidal increasing signal which was in fuse test signal, this paper proposed a new method to detect the weak non-periodic trapezoidal increasing signal by using Duffing oscillator under strong background noise.The method divided the signal into sections according to the characteristic of the trapezoidal increasing signal, transformed the non-periodic signal to periodic signal.It avoided the fact that the detection for non-periodic signal was extremely limited based on Duffing.Simulation experiments show that the method can detect the weak non-periodic trapezoidal increasing signal from the low SNR background effectively.The result shows that this method can effectively detect the trapezoidal increasing signal which is in fuse test signal, and has strong resistance to any colored noise with zero mean value.关键词
梯形增幅信号/混沌/弱信号检测/Duffing振子分类
信息技术与安全科学引用本文复制引用
贺莉,王小敏..基于Duffing振子的梯形增幅波弱信号检测[J].计算机应用研究,2011,28(2):677-680,4.基金项目
国家自然科学基金资助项目(60903202) （60903202）
国家教育部新教师基金资助项目(20090184120024) （20090184120024）
西南交通大学基础研究基金资助项目(2008B08) （2008B08）
