一类椭圆数字滤波器的全新设计方法  

A new Design for a Class of Elliptic Digital Filter

作　　者：郭云[1] 刘鹏程[1] 

机构地区：[1]西安电子科技大学,西安710071

出　　处：《电子测量与仪器学报》1995年第2期9-14,共6页Journal of Electronic Measurement and Instrumentation

摘　　要：在各种滤波器中，椭圆滤波器具有其独特的优点，但设计过程相当繁杂，本文针对半带IIR椭圆滤波器设计方法，提出对椭圆函数实施一种变换，使其能与契比雪夫多项式的某些性质相结合，得出一种极其简便的全新设计方法，其优点是初始值数据较少，设计步骤简练，计算量仅约为文献［1］的1／4，而精度与其相同。Among all kinds of filters, elliptic filter has its unique advantage. But its designis quite complicated, In view of the design method of half-band IIR elliptic filter, the papersuggestsa transfer to elliptic function, so the function obtained hereafter can combine withsome features of Chebyshev' S polynomial, which leads to a very new and simple designmethed, The advantages are: less original data, simpler design procedure, and calculationarnount is only as much as one-fourth of that of the methed in reference (1) with same precislon.

关 键 词：椭圆滤波器 半带滤波器 数字滤波器 滤波器 设计 

分 类 号：TN713.7[电子电信—电路与系统]