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| 基于WPT分层和独立子波函数的单路心音混合信号BSS新方法 | |
| 引用本文： | 成谢锋,陶冶薇,张少白. 基于WPT分层和独立子波函数的单路心音混合信号BSS新方法[J]. 南京邮电大学学报(自然科学版), 2009, 29(4): 50-54,63 |
| 作者姓名： | 成谢锋 陶冶薇 张少白 |
| 作者单位： | 1. 南京邮电大学,电子科学与工程学院,江苏,南京,210003 2. 南京邮电大学,理学院,江苏,南京,210003 3. 南京邮电大学,计算机学院,江苏,南京,210003 |
| 基金项目： | 山东省自然科学基金重点项目，南京邮电大学引进人才基金 |
| 摘 要： | 提出了一种基于小波变换分层和独立子波函数的单路混合信号的盲源分离新方法.首先讨论了单路混合信号分离模型,以及如何利用WPT进行窄带分层和获取独立子波函数的技术;然后通过结合独立子波函数进入单路混合信号,使单路混合信号由一维向量转化成为多维向量,以实现其盲分离;最后通过心音信号的分离实验,验证了本方法的有效性和可行性. |
| 关 键 词： | 盲分离 独立子波函数 单路信号 心声信号 |
A BSS Method of Single-channel Signal Based on WPT Layered Technique and Independent Sub-band Functions |
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| CHENG Xie-feng,TAO Ye-wei,ZHANG Shao-bai. A BSS Method of Single-channel Signal Based on WPT Layered Technique and Independent Sub-band Functions[J]. JJournal of Nanjing University of Posts and Telecommunications, 2009, 29(4): 50-54,63 | |
| Authors: | CHENG Xie-feng TAO Ye-wei ZHANG Shao-bai |
| Affiliation: | CHENG Xie-feng1,TAO Ye-wei2,ZHANG Shao-bai31.College of Electronics Science , Engineering,Nanjing University of Posts , Telecommunications,Nanjing 210003,China2.College of Science,China3.College of Computer,China |
| Abstract: | Based on wavelet packet transform(WPT) layered technique and independent sub-band functions,the paper presents a new signal processing technique to accomplish blind source separation in a single-channel mixture signal.First,we discuss the single-channel mixed-signal separation model,as well as how to carry on the Layered using WPT,and how to gain the technique of the independent sub-band functions.Then,combining independent sub-wave function into the one-way mixed-signal,one-way mixed-signal conversion can ... |
| Keywords: | layered technique independent sub-band functions single-channel signal heart sounds signal |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |