| 一种抑制心电信号50 Hz工频干扰的改进Levkov方法 |
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| 引用本文： | 孙京霞,白延强,杨玉星. 一种抑制心电信号50 Hz工频干扰的改进Levkov方法[J]. 航天医学与医学工程, 2000, 13(3): 196-199 |
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| 作者姓名： | 孙京霞 白延强 杨玉星 |
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| 作者单位： | 1. 航天医学工程研究所,北京,100094
2. 华中理工大学,湖北,430074 |
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| 摘 要： | 目的 探讨一种用于抑制心电信号中５０Ｈｚ工频干扰的新方法。方法 在Ｌｅｖｋｏｖ滤波法的基础上，加入ＱＲＳ开关函数，并用此法与几种常用的滤波方法进行比较。结果 该方法算法简单，处理速度快，对强、弱噪声滤波效果都较好。结论 该方法对于抑制心电信号中５０Ｈｚ工频干扰有很好的应用前景。
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| 关 键 词： | 心电信号 模板 工频干扰 Levkov方法 |
An Improved Levkov Method for Filtering 50 Hz Interference in ECG Signals |
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| SUN Jing-xia,BAI Yan-qiang,YANG Yu-xing. An Improved Levkov Method for Filtering 50 Hz Interference in ECG Signals[J]. Space Medicine & Medical Engineering, 2000, 13(3): 196-199 |
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| Authors: | SUN Jing-xia BAI Yan-qiang YANG Yu-xing |
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| Abstract: | Objective To find a new method for repressing the 50 Hz power line interference in ECG signals. Method An improved method based on Levkov filtering method and inserted QRS switch function, several ordinary methods were compared with it. Result This method had a simple algorithm, fast processing speed and good result of filtering both strong and weak interference. Conclusion This method provides a good base for further disposing. |
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| Keywords: | ECG signals templet power line interference filtration |
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