Location:
Search - 心电信号，预处理技术
Search list
Description: 详细阐述心电信号的特点及相关的预处理技术。心电信号是低频微弱信号，且处于强噪声背景下，特别是50Hz的工频干扰。本文利用Matlab提供的工具箱，高效地设计出了满足实际要求的滤波器，经仿真后证明了其有效性。
Platform: |
Size: 2054656 |
Author: tangjunquan84@163.com |
Hits:
Description: 心电图(ECG)是临床上诊断心血管疾病的重要方法。
数字滤波作为数字信号处理技术的重要组成部分，广泛应用于诸如信号分离、恢复、整形等多种场合中。为了使信号不失真及在可编程逻辑器件中容易实现，采用具有严格线性相位特性的FIR滤波器进行低通滤波（0-150Hz），用整系数梳状滤波器来去工频干扰及基线漂移,从而达到对心电信号进行预处理的目的。(Electrocardiogram (ECG) is an important method for clinical diagnosis of cardiovascular diseases.
As an important part of digital signal processing technology, digital filtering is widely applied to many occasions, such as signal separation, recovery, shaping and so on. In order to make the signal undistorted and easy to be realized in programmable logic device, the FIR filter with strict linear phase characteristics is used for low pass filtering (0-150Hz), and the entire coefficient comb filter is used to get the interference of the power frequency and the baseline drift, thus the purpose of preprocessing the ECG signal is achieved.)
Platform: |
Size: 2048 |
Author: 火爆夏日 |
Hits: