The design of two-channel lattice-structure perfect-reconstruction filter banks using powers-of-two coefficients

Author

Horng, Bor-Rong ; Samueli, Henry ; Wilson, A.N.

Author_Institution

Dept. of Electr. Eng., California Univ., Los Angeles, CA, USA

Volume

40

Issue

7

fYear

1993

fDate

7/1/1993 12:00:00 AM

Firstpage

497

Lastpage

499

Abstract

An optimization technique is presented for the design of two-channel lattice-structure perfect-reconstruction filter banks with powers-of-two coefficients. The filter coefficients are represented by a canonic signed-digit (CSD) code. The proposed technique requires the original optimal infinite-precision coefficients as the starting point, and searches for the set of CSD coefficients that minimizes the peak stopband ripple. Design examples are given to show that perfect-reconstruction filter banks with good filtering performance can be obtained

Keywords

digital filters; filtering and prediction theory; optimisation; canonic signed-digit code; filter banks; filter coefficients; lattice-structure; optimal infinite-precision coefficients; optimization technique; peak stopband ripple; perfect-reconstruction; powers-of-two coefficients; two-channel; Channel bank filters; Design optimization; Dynamic range; Filter bank; Filtering; Frequency response; Lattices; Performance gain; Quantization; Signal design;

fLanguage

English

Journal_Title

Circuits and Systems I: Fundamental Theory and Applications, IEEE Transactions on

Publisher

ieee

ISSN

1057-7122

Type

jour

DOI

10.1109/81.257306

Filename

257306