有源梳状滤波器消除谐波干扰[心电应用]

Proceedings of 16th Annual International Conference of the IEEE Engineering in Medicine and Biology Society Pub Date : 1994-11-03 DOI:10.1109/IEMBS.1994.415235

Chang-Tar Tsai, Hsiao-Lung Chan, C. Tseng, Chien-Ping Wu

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引用次数: 11

摘要

针对生物医学信号中难以处理的谐波干扰，提出了一种新的有源梳状滤波器设计方法。该滤波器由四个窄带带通滤波器组成。每个带通滤波器的中心频率就是谐波干扰所表征的不需要的频率。该电路演示了消除60、180、300和420 Hz干扰的能力。该电路采用通用的741型运算放大器来实现。三角波测试表明了谐波干扰消除的有效性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Harmonic interference elimination by an active comb filter [ECG application]

A new approach for an active comb filter design is proposed to remove the difficult harmonic interference contaminating the biomedical signals. The filter consists of four narrow-band bandpass filters. The center frequency of each bandpass filters is just the unwanted frequency characterized by the harmonic interference. The circuit demonstrates the capability to eliminate the interference of 60, 180, 300, and 420 Hz. The general 741 type operational amplifier has been used to realize the circuit presented. Triangular wave testing shows the effectiveness of harmonic interference cancellation.<>

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来源期刊

Proceedings of 16th Annual International Conference of the IEEE Engineering in Medicine and Biology Society

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