A synthesis of low-sensitivity digital filters using T-cascade of wave lattice sections

Author

Watanabe, Eiji ; Minagawa, Kenji ; Nishihara, Akinori

Author_Institution

Tokyo Inst. of Technol., Japan

fYear

1988

fDate

7-9 June 1988

Firstpage

535

Abstract

The authors propose new low-sensitivity digital filter structures which are also suited for pipeline processing. The approach involves the synthesis of digital two-port circuits with structurally induced losslessness. The structures are synthesized by factoring lossless scattering matrices, and constructed using the T-cascade connection of basic sections, instead of the Pi -cascade connection. Each lossless factor is realized by a first- or second-order wave digital lattice filter. The proposed structures can realize the amplitude responses of any given transfer functions.<>

Keywords

cascade networks; network synthesis; pipeline processing; sensitivity; transfer functions; wave digital filters; T-cascade; amplitude responses; circuit synthesis; digital two-port circuits; lossless scattering matrices; low-sensitivity digital filters; pipeline processing; structurally induced losslessness; transfer functions; wave digital lattice filter; wave lattice sections; Circuit synthesis; Digital filters; Integrated circuit interconnections; Lattices; Matrix decomposition; Pipeline processing; Polynomials; Scattering; Signal processing; Signal synthesis;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 1988., IEEE International Symposium on

Conference_Location

Espoo, Finland

Type

conf

DOI

10.1109/ISCAS.1988.14982

Filename

14982