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.
In order to bring the speed potential of the middling resolution ADC to play effectively, predigest the design of bioelectlicitical amplifier and reduce its cost, oversampling is used to detect bioelectlicity 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 bioelectlicity signal detection widely.
出处
《电子学报》
EI
CAS
CSCD
北大核心
2008年第7期1465-1467,共3页
Acta Electronica Sinica
关键词
过采样
生物电检测
模数转换
分辨率
oversampling
bioelectlidty detection
analog to digital converter
resolution
