基于小波变换的瞬态诱发耳声发射仿真信号研究  

Analysis of Transiently Evoked Otoacoustic Emissions Simulated Signal based on Wavelet Transform

作　　者：吴朝霞[1] 柴新禹[2] 余鹏[1] 程敬之[1] 

机构地区：[1]西安交通大学电信学院医电所,西安710049 [2]上海交通大学生物医学工程系,上海200030

出　　处：《仪器仪表学报》2001年第5期479-482,共4页Chinese Journal of Scientific Instrument

基　　金：国家自然科学基金资助项目 (6971 0 0 6)

摘　　要：本文利用两类不同基本小波对仿真诱发耳声发射信号进行分析 ,比较两类小波的时间尺度分辨率 ,进而研究瞬态诱发耳声发射信号潜伏期与不同尺度下频率成份之间的关系。研究结果表明 :Proposed小波在 n=2的情况下 ,其时间尺度分辨率明显优于其它小波 ,用该小波分析仿真诱发耳声发射信号 ,得出了潜伏期与尺度之间的关系。仿真诱发耳声发射信号潜伏期与其小波变换不同尺度之间基本呈线性关系 ,所以对诱发耳声发射信号进行小波分析 ,可能会为临床提供很有价值的诊断信息。The simulated TEOAEs signal with different mother wavelets was analyzed, this paper compared their time and scale resolutions, then studied the relation between latency and frequency component. Results show:When n=2,the time and scale resolution of proposed wavelet was better than others, paper also got the relationship between latency and frequency component. The relationship between latency of simulated TEOAEs and the scale of its wavelet transform was approximate linear, therefore wavelet transform analysis of TEOAEs signal can provide valuable information to otology clinical diagnosis.

关 键 词：小波变换 耳声发射 时间尺度分辨率 信号分析 仿真 

分 类 号：R339.16[医药卫生—人体生理学] R764[医药卫生—基础医学]