Filtering method of power frequency interference in ECG signals.
- Author:
Shengyang LIU
;
Genxuan ZHANG
;
Yang CAO
- Publication Type:Journal Article
- MeSH:
Algorithms;
Electrocardiography;
Humans;
Signal Processing, Computer-Assisted;
Signal-To-Noise Ratio;
Software
- From:
Journal of Biomedical Engineering
2014;31(3):577-582
- CountryChina
- Language:Chinese
-
Abstract:
Electrocardiogram (ECG) signals are susceptible to be disturbed by 50 Hz power frequency in the process of acquisition and conversion. This paper puts forward the improved Levkov algorithm combined with the antisymmetry of sine wave and the characteristic of not--easily mutation of the sine wave amplitude. The improved and the original algorithms were compared with signal to noise ratio (SNR), root mean square error (RMSE) and coincidence of the signals. Based on the experimental comparison, it was concluded that the improved algorithm had better filte-ring functions, because it not only highly coincided with ECG, but also retained certain details of ECG.
