We analyze rejecting periodic interference in PD monitoring on line through cascade IIR digital wave notch filter. The principle and simple design method are proposed and discussed.
在分析用IIR陷波滤波器来抑制局部放电在线监测中周期性干扰的基础上，提出和论述了级联式II R陷波滤波器基本原理及简明设计方法。
Operation principle of the digital wave filter and application in the field of digital sound result, discuss IIR wave filter, FIR wave filter design method.
数字滤波器的工作原理以及在数字音效领域的应用，讨论IIR滤波器、FIR滤波器的设计方法。
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