| 消除50Hz工频干扰数字滤波器的设计 |
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| 引用本文： | 邢国泉.消除50Hz工频干扰数字滤波器的设计[J].医疗卫生装备,2008,29(12):25-27. |
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| 作者姓名： | 邢国泉 |
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| 作者单位： | 咸宁学院,生物医学工程系,湖北,咸宁,437100 |
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| 摘 要： | 目的：设计一带阻滤波器，以消除信号处理中的工频干扰。方法：利用程序设计法和FDATool设计法进行设计。结果：利用一混和正弦信号进行测试，该滤波器可以很好地消除50Hz的工频干扰。结论：该设计方法除了可以消除工频干扰之外，只需要做简单的程序修改就可以消除任意一种频率的干扰信号。
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| 关 键 词： | 数字滤波器 FDATool 消除噪声 带阻 |
Design of Digital Filter of Cancelling 50HZ Noise |
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| XING Guo-quan.Design of Digital Filter of Cancelling 50HZ Noise[J].Chinese Medical Equipment Journal,2008,29(12):25-27. |
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| Authors: | XING Guo-quan |
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| Institution: | XING Guo-quan (Biomedical Engineering Department of Xianning College, Xianning 437100, Hubei Province, China) |
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| Abstract: | Objective To design a bandstop digital filter for cancelling the 50HZ noise. Methods Procedure and FDATool method were used in processing. Results The filter was tested by a blended sine wave, the experimental result showed that the filter could cancel the 50HZ noise. Conclusion This filter may eliminate a random noise except the 50HZ noise by modifying the procedure simply. |
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| Keywords: | FDATool |
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