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本文提出一种新类型(通带衰减为最大平坦型)的通用参数滤波器的逼近方法。这种类型的滤波器比较适用于对通带内某一频率附近衰减特性的逼近程度要求较高的情况。并可满足恒定通带延时及任意阻带衰减特性的要求。文中分别给出带通和低通情况的讨论以及具体的设计计算实例。
This paper presents a new type (passband attenuation for the largest flat type) universal parametric filter approximation method. This type of filter is more suitable for the passband near a certain frequency near the attenuation characteristics of the high degree of approximation. And to meet the constant passband delay and any stopband attenuation characteristics of the request. The article gives the discussion of the band-pass and low-pass situation and the concrete design calculation example respectively.