Signal processor implementation of digital all-pass filters

Author

Renfors, Markku ; Zigouris, Evangelos

Author_Institution

Dept. of Electr. Eng., Tampere Univ. of Technol., Finland

Volume

36

Issue

5

fYear

1988

fDate

5/1/1988 12:00:00 AM

Firstpage

714

Lastpage

729

Abstract

The implementation of digital filter structures of all-pass subfilters using modern high-speed signal processors is investigated. The focus is on digital all-pass filters realized as a cascade of first- and second-order all-pass sections. Wave digital all-pass sections are considered, with special emphasis on developing two-port adaptor structures that are suitable for signal processor implementation. Explicit formulas are developed for scaling and round-off noise analysis of these all-pass sections. Other well-known first- and second-order all-pass filter sections are considered. The performance of the various all-pass filter structures are compared with respect to roundoff noise, parasitic oscillations, and speed of signal processor implementation

Keywords

all-pass filters; filtering and prediction theory; signal processing equipment; wave digital filters; all-pass subfilters; digital all-pass filters; high-speed signal processors; parasitic oscillations; round-off noise analysis; scaling; two-port adaptor structures; wave digital filters; Band pass filters; Digital filters; Filter bank; Finite impulse response filter; IIR filters; Lattices; Linear approximation; Passband; Sampling methods; Signal processing;

fLanguage

English

Journal_Title

Acoustics, Speech and Signal Processing, IEEE Transactions on

Publisher

ieee

ISSN

0096-3518

Type

jour

DOI

10.1109/29.1581

Filename

1581