One method for FIR minimum-phase multiplier-free filter design based on cosine and RRS filters

Author

Dolecek, Gordana Jovanovic ; Dolecek, Vlatko ; Karabegovic, Isak

Author_Institution

Dept. of Electron., INAOE, Puebla, Mexico

Volume

3

fYear

2005

fDate

28 Aug.-2 Sept. 2005

Abstract

This paper presents one simple method for direct multiplier-free narrowband minimum-phase FIR filter design. The design is based on the minimum-phase filter specification. The designed filter is a cascade of recursive running sum (RRS) filters and cosine filters. The sharpening technique is used to improve the magnitude characteristic of the designed filter. We apply different modified sharpening polynomials to RRS and cosine filters. As a result, we obtain a less complex design that meets the desired minimum-phase specification. The Rouche´s theorem is used to prove that a designed filter is a minimum phase.

Keywords

FIR filters; cascade networks; network synthesis; polynomials; recursive filters; RRS filters; Rouche theorem; cascade filters; cosine filters; minimum-phase FIR filter design; minimum-phase filter specification; minimum-phase specification; modified sharpening polynomials; multiplier-free narrowband FIR filter design; recursive running sum filters; Added delay; Attenuation; Computational complexity; Delay effects; Finite impulse response filter; IIR filters; Narrowband; Nonlinear filters; Polynomials; Prototypes;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuit Theory and Design, 2005. Proceedings of the 2005 European Conference on

Print_ISBN

0-7803-9066-0

Type

conf

DOI

10.1109/ECCTD.2005.1523135

Filename

1523135