Design and implementation of linear-phase 2-channel perfect reconstruction FIR filter banks with equiripple stopband

Author

Nagai, Takayuki ; Ikehara, Masaaki

Author_Institution

Fac. of Sci. & Technol., Keio Univ., Yokohama, Japan

fYear

1994

fDate

5-8 Dec 1994

Firstpage

249

Lastpage

253

Abstract

This paper presents a design and implementation method for linear phase 2-channel perfect reconstruction FIR filter banks with arbitrary filter length. In this method, which we call the weighted Lagrange-Newton method, by introducing the least squares weighting function into Horng´s method (Lagrange-Newton method), QMF (Quadrature Mirror Filters) with good stopband attenuation can be designed. Furthermore, we show the construction of a 2-channel perfect QMF that achieves perfect reconstruction in spite of coefficient quantization

Keywords

FIR filters; Newton method; band-pass filters; band-stop filters; delay circuits; least squares approximations; linear network synthesis; quadrature mirror filters; signal reconstruction; Horng method; Lagrange-Newton method; coefficient quantization; design; equiripple stopband; least squares weighting function; linear-phase 2-channel perfect reconstruction FIR filter banks; quadrature mirror filter; Attenuation; Delay; Design methodology; Filter bank; Finite impulse response filter; Lagrangian functions; Lattices; Least squares methods; Mirrors; Quantization;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 1994. APCCAS '94., 1994 IEEE Asia-Pacific Conference on

Conference_Location

Taipei

Print_ISBN

0-7803-2440-4

Type

conf

DOI

10.1109/APCCAS.1994.514558

Filename

514558