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A comb filter design using fractional-sample delay

机译:使用分数采样延迟的梳状滤波器设计

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摘要

In this paper, a new comb filter design method using fractional sample delay is presented. First, the specification of the comb filter design is transformed into that of fractional delay filter design. Then, conventional finite impulse response(FIR) and allpass filter design techniques are directly applied to design fractional delay filter with transformed specification. Next, we develop a constrained fractional delay filter design approach to improve the performance of the direct designmethod. Finally, several design examples and an experiment of the power line interference removal in electrocadiogram (ECG) signal are demonstrated to illustrate the effectiveness of this new design approach.
机译:该文提出了一种新的基于分数采样延迟的梳状滤波器设计方法。首先,将梳状滤波器设计的规范转变为分数延迟滤波器设计的规范。然后,将传统的有限脉冲响应(FIR)和全通滤波器设计技术直接应用于设计具有变换规格的分数延迟滤波器。接下来,我们开发了一种约束分数延迟滤波器设计方法,以提高直接设计方法的性能。最后,通过几个设计实例和电图(ECG)信号中电力线干扰去除的实验,验证了这种新设计方法的有效性。

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