双谱估计及其在心音信号分析中的应用  

Bispectrum estimation and its application in analysis of heart sound signals

作　　者：何莹[1] 

机构地区：[1]韶关学院机械电子工程系,韶关512005

出　　处：《信息技术》2004年第7期24-25,57,共3页Information Technology

摘　　要：应用高阶统计量技术对心音信号进行了AR模型双谱估计,分析结果表明,与传统的功率谱分析方法相比较,双谱分析方法可以提供更多更客观的信息,是分析和处理心音信号的实用而有效的工具。In the paper, the higher-order statistics methods were used to estimate the bispectrum of heart sound signals. The experimental results showed that, compared with conventional power spectrum methods, bispectrum analysis can reveal extra and more objective information. Bispectrum estimation is an applicable and effective tool for analyzing and processing heart sound signals.

关 键 词：双谱 AR模型 心音信号 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]