计量学报2016，Vol.37Issue(5)：535-539,5.DOI:10.3969/j.issn.1000-1158.2016.05.17
双/单通道传导电磁干扰噪声盲源分离研究
Study on BIind Source Separation of DuaI/SingIe-channeI Conducted EMI Noise
摘要
Abstract
Aiming to the complexity and high-cost of hardware-based separation network in conducted electromagnetic interference noise,as well as the poor anti-noise ability and measuring synchronism of traditional software-based separation approach,an EMI difference mode and common mode noise extracted strategy based on blind source separation theory is presented. Firstly,the fast independent component analysis algorithm is used for live and null line noise extraction,with a dual-channel BSS approach. Experiments demonstrate a wider signal-to-noise ratio range than RF current approaches, meaning stronger applicability. Then,the single-channel BSS approach extends extra virtual channel using continuous wavelet transform algorithm. Tests prove the separation performance depends on the choice of wavelet function,rather than the number of extended channels. Single-channel BSS approach saves economic cost and possesses wide prospect,with a little less separation ability.关键词
计量学/传导电磁干扰/盲源分离/快速独立分量分析/连续小波变换/双/单通道Key words
metrology/conducted electromagnetic interference/blind source separation/fast independent component analysis/continuous wavelet transform/dual/single-channel分类
通用工业技术引用本文复制引用
赵波,赵敏,马宇明,沈飞..双/单通道传导电磁干扰噪声盲源分离研究[J].计量学报,2016,37(5):535-539,5.基金项目
国家自然科学基金青年基金（51307075）；江苏省自然科学基金 （）
