电子学报 ›› 2008, Vol. 36 ›› Issue (7): 1465-1467.

• 论文 • 上一篇    下一篇

基于过采样技术的生物电信号检测

李 刚, 张丽君, 林 凌, 何 峰   

  1. 天津大学生物医学信息检测与处理实验室,天津 300072
  • 收稿日期:2006-06-01 修回日期:2006-12-01 出版日期:2008-07-25 发布日期:2008-07-25

Research of Bioelectricity Signal Detection Based on Oversampling

LI Gang, ZHANG Li-jun, LIN Ling, HE Feng   

  1. Biomedical Signal Detecting and Processing Laboratory,Tianjin University,Tianjin 300072,China
  • Received:2006-06-01 Revised:2006-12-01 Online:2008-07-25 Published:2008-07-25

摘要: 为充分发挥中等分辨率模数转换器的速度潜力和简化生物电放大器的设计、大幅度降低放大器的成本,本文采用过采样技术对生物电信号进行检测.以人体心电检测为例,使用三种采样方法进行实验.结果表明,过采样得到的心电图形有较好的精度和信噪比.该方法可广泛应用于各种生物电信号的检测.

关键词: 过采样, 生物电检测, 模数转换, 分辨率

Abstract: In order to bring the speed potential of the middling resolution ADC to play effectively,predigest the design of bioelectricitical amplifier and reduce its cost,oversampling is used to detect bioelectricity in this paper.Human’s ECG detection based on oversampling is used to check it’s validity,and three sample methods are utilized to experiment.The results show that the ECG has better precision and SNR by the method of oversampling than the conventionality.This method can be applied to various bioelectricity signal detection widely.

Key words: oversampling, bioelectricity detection, analog to digital converter, resolution

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