小波时频滤波器在ERP单次提取中的应用  

Application of Time frequency Filter of Wavelet to Single trail ERP Extracting

作　　者：李鲁平[1] 马瑞山[1] 程宏伟[1] 倪鹤樱 程敬之[2] 

机构地区：[1]第四军医大学空军医学系,西安710032 [2]西安交通大学生物医学工程系,西安710049

出　　处：《生物医学工程学杂志》1998年第2期116-119,共4页Journal of Biomedical Engineering

摘　　要：在对听觉事件关联电位（ＥＲＰ）时、频域分析的基础上，结合相关分析方法，设计出了基于多分辨率样条小波的时频滤波器，可以实现ＥＲＰ单次提取。A new approach to extracting single trail event related potential(ERP) in combination with the correlation analysis has been proposed.This approach,called time frequency filter,is based on the concept that multiresolution wavelet transforms.At first,an investigation of the properties in time and frequency domain was carried out on the ERP.On the basis of the findings,the time frequency filter of wavelet was designed and used for single trail ERP extracting.The results and related discussion are presented in this paper.

关 键 词：小波分析 时频滤波器 听觉 ERP 单次提取 

分 类 号：R338.8[医药卫生—人体生理学] R318.04[医药卫生—基础医学]