摘要
为了采集准确的心电信号,设计了一套基于瞬时心率信号抗干扰测量的方法,针对微弱并易受干扰的心电采样信号,进行有效地硬件以及软件滤波,通过软件数字滤波算法,得到真实的心率信号.实验结果表明,当运动状态稳定时,通过对采样信号脉宽限制及16个采样数据做滑动平均处理,得到的数据能够显示人体运动时的真实心率,数据波动正确的反映了心率状态,能够提供稳定准确的数值依据.
To acquire accurate ECG signal from strong back noise, an approach based on instantaneous heart rate anti-interference measurement is provided, which can effectively carry on filtering to the hardware and software, providing accurate and stable test data because of weak and easily interfered input signal. Through the software digital filtering algorithm, accurate heart rate signal can be obtained. The experiment result shows that when motion status is stable, through pulse width constraint of the sample signal and moving average processing of 16 sampling data, the data measured can show the true heart rate of human motion. Moreover, heart rate status can be accurately reflected, and the stable and accurate data reference can be provided.
出处
《大连交通大学学报》
CAS
2012年第1期28-31,共4页
Journal of Dalian Jiaotong University
基金
国家体育总局基金资助项目(10B061)
关键词
心电信号
屏蔽
滤波
ECG signal
shielding
filter
