Design of Sparse FIR Filters with Low Group Delay

被引：2

作者：

Konopacki, Jacek ^{[1
]}

机构：

[1] Silesian Tech Univ, Fac Automat Control Elect & Comp Sci, Gliwice, Poland

来源：

INTERNATIONAL JOURNAL OF ELECTRONICS AND TELECOMMUNICATIONS | 2021年 / 67卷 / 01期

关键词：

digital filters; FIR filters design; sparse filters; reduced group delay filters; REDUCTION;

D O I：

10.24425/ijet.2021.135953

中图分类号：

TN [电子技术、通信技术];

学科分类号：

0809 ;

摘要：

The aim of the work is to present the method for designing sparse FIR filters with very low group delay and approximately linear-phase in the passband. Significant reduction of the group delay, e.g. several times in relation to the linear phase filter, may cause the occurrence of undesirable overshoot in the magnitude frequency response. The method proposed in this work consists of two stages. In the first stage, FIR filter with low group delay is designed using minimax constrained optimization that provides overshoot elimination. In the second stage, the same process is applied iteratively to reach sparse solution. Design examples demonstrate the effectiveness of the proposed method.

引用

页码：121 / 126

页数：6

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