【摘要】 滤波器特性的非等波纹逼近方法 ,在对称负载情况下阶数 N为奇或偶均可实现 .提出一种用切比雪夫多项式构成有理分式作为滤波器的特征函数 ,并利用迭代分析进行非等波纹低通滤波器综合的方法 .由于这种滤波器的衰减零极点很容易确定 ,因而设计过程简单 ,便于计算机编程 .算例表明这一方法具有实用价值更多还原

【Abstract】 Non equiripple approximation of filter characteristics can be realized either odd order or even order in the symmetric load case.This paper presents a method of synthesizing non equiripple low pass filter based on iteration analysis,in which the rational fraction formed of Chebyshev polynomial is used as the filter characteristic function.This method is convenient for computer programming,because the attenuation zeros and poles of the filter can be determined easily and the synthesis procedure is simple,too.The given examples show that the method is of a practical value in filter design.更多还原