【摘要】 针对目前心电检测模拟滤波器设计的不足,本文利用Multisim10对滤波电路的相频特性、幅频特性、交流容差、直流容差和瞬态响应参数进行全面仿真分析,设计出了满足心电信号要求的滤波器.对滤波的结果与数字滤波器的结果进行误差对比,其E[e2]的值为0.003 5,表明该滤波器性能稳定、信号保真度高.更多还原

【Abstract】 In view of the shortage about ECG detection analog filter designing at present,comprehensive simulation analysis about phase frequency characteristics and amplitude-frequency characteristics and Exchange of tolerance and DC tolerance and Transient response of analog filter by Multisim10 were studied,and a filter to meet requirements of ECG signals was desiqed.Analog filter results compared with the digital filter result of error the E value is 0.003 5,it shows that the filter stable performance and high fidelity of signal.更多还原