耦合双谱运算在语音信号分析中的应用  

Application of Coupling Complex Bispectrum Operation to Speech Signal Analysis

作　　者：梅二召 范景峰 MEI Er-zhao;FAN Jing-feng(School of Mechanical and Electrical Engineering,Henan Technical Institute,Zhengzhou 450042,China)

机构地区：[1]河南应用技术职业学院机电工程学院,河南郑州450042

出　　处：《软件》2020年第9期9-12,25,共5页Software

基　　金：校级科研项目(批准号:2019B-KJ-13)。

摘　　要：为了进一步提取语音信号中的特征信息,采用一种耦合双谱运算的分析方法。在双谱运算中,由于复数三阶累积量的定义方式不同,所包含的耦合信息成分也不同。因此,根据复数三阶累积量的不同定义方式,对实数域内不容易区分的语音信号进行复数域内双谱及其对角切片分析。实验结果表明,根据复数三阶累积量的不同定义进行的双谱及其对角切片谱分析,能够区分出实数域内不易区分出的语音信号,而且由于在不同定义下所包含的耦合信息不同,双谱及其对角切片分析结果也不同。In order to further extract the characteristic information of speech signal,one method of analysis coupled bispectrum operations was proposed.In the bispectrum operations,the complex forms with different definitions of three-order cumulants included different coupling information of signals.Thus,this paper used the complex bispectrum and its diagonal slice to analyze the speech signal which is difficult to distinguish in the real number field depending the complex forms with different definitions of three-order cumulants.The experiment results show that using the complex bispectrum and its diagonal slice can distinguish the speech signal which is difficult to distinguish in the real domain depending the complex forms with different definitions of three-order cumulants,and the complex bispectrum and its diagonal slice analysis results are different since the forms with different definitions included different coupling information of signal.

关 键 词：语音信号分析 耦合 复双谱运算 双谱对角切片 复数三阶累积量 

分 类 号：TP391.1[自动化与计算机技术—计算机应用技术]