摘要
本文根据心电实时监护的要求,应用整系数线性相位数字滤波器对心电信号作预处理,包括50Hz 工频干扰的陷波(带阻滤波)及高频噪声抑制(低通滤波)。文章叙述了整系数数字滤波器的设计过程,在实际滤波效果与计算量的减省方面均取得了较好的效果。
According to the requirements of ECG real-time monitoring,inte-ger coefficient linear phase digital filters,including 50 Hz notchfilter and high frequency noise suppression (low pass filter),wereused for pre-processing of ECG signals.This paper describes thedesign process of digital integer coefficient filters.The results offiltering indicated that these filters were good in both performanceof processing and reduction in amount of computing.
出处
《航天医学与医学工程》
CAS
CSCD
1989年第4期253-275,共23页
Space Medicine & Medical Engineering
关键词
心电图
实时处理
数字滤波器
信号
Electrocardiography
Real time processing
Digital filter
Interference protection measures
Information processing
