南京邮电大学学报（自然科学版）2013，Vol.33Issue(2)：25-30,6.
单路单周期心音混叠信号欠定盲分离方法
Single Channel-single Period Heart Sound Mixed Signal Underdetermined Blind Source Separation Method
摘要
Abstract
With a single channel mixed signal BSS method and the periodicity of heart sound, this paper presents a single channel-single period heart sound mixed signal underdetermined blind source separation method by using discrete wavelet transform( DWT) and independent component analysis( ICA). First,this method uses dwt_ica to get independent heart sound sun-band. Then it puts the independent heart sound sun-band into the single channel heart sound mixed signal, and makes single channel signal turn into multi channel signals, so the heart sound signal could be separated by using ICA again. Finally, the experiments on the heart sound signal demonstrated the feasibility of the method.关键词
欠定盲分离/心音信号/独立心音子波Key words
underdetermined blind source separation/ heart sound signal/ independent heart sound sun-band分类
信息技术与安全科学引用本文复制引用
成谢锋,吴晓晓,王路飞,陈泓..单路单周期心音混叠信号欠定盲分离方法[J].南京邮电大学学报（自然科学版）,2013,33(2):25-30,6.基金项目
国家自然科学基金(61271334)资助项目 （61271334）
