简要介绍了带通滤波器的原理，着重说明四阶带通滤波器的设计方法，并给出设计思路和调试方法。
This paper introduces the basic principles of the band pass filter, laying emphasis on the designing of four-step band pass filter, and gives the details of design method and debug process.
经论证提出了抗混滤波器的设计指标，进行了切比雪夫抗混滤波器的设计计算。
The design specification of antialiasing filter is presented by proof and the design and calculation of Chebyshev antialiasing filter is performed.
从频率的角度设计滤波器电路，必须考虑诸如滤波器带宽设计和阶数(极点的数量)之类的问题。
Approaching the filter circuit from the frequency perspective will force you to consider issues such as the filter bandwidth design and order (number of poles).
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