DESIGN OF IIR DIGITAL-FILTERS USING ALL-PASS NETWORKS

被引：12

作者：

IKEHARA, M ^{[1
]}

TANAKA, H ^{[1
]}

KURODA, H ^{[1
]}

机构：

[1] NAGASAKI UNIV,FAC ENGN,NAGASAKI 852,JAPAN

来源：

IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-ANALOG AND DIGITAL SIGNAL PROCESSING | 1994年 / 41卷 / 03期

关键词：

All pass networks - Equiripple - IIR digital filters - Remez algorithm;

D O I：

10.1109/82.279209

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 [电气工程]; 0809 [电子科学与技术];

摘要：

This paper presents a new method of designing the generalized IIR digital filter in the form of a parallel connection of two all-pass filters. It is shown that the numerator of the overall transfer function of this form can be expressed as real function of the all-pass coefficients. Then Remez algorithm is applied to the numerator and the rational approximation problem is transformed into a linear problem. IIR digital filters with the desired specification can be directly designed in the z-domain by this method. The proposed algorithm converges through a few iterations, and the amplitude property of IIR digital filter has equiripple.

引用

页码：231 / 235

页数：5

共 6 条

[1]

A CLASS OF LOW-NOISE COMPUTATIONALLY EFFICIENT RECURSIVE DIGITAL-FILTERS WITH APPLICATIONS TO SAMPLING RATE ALTERATIONS [J].