Minimal ARMA lattice digital filter realization

Author

Kwan, H.K.

Author_Institution

Dept. of Electr. & Comput. Eng., Windsor Univ., Ont., Canada

Volume

4

fYear

2003

fDate

25-28 May 2003

Abstract

In this paper, a minimal and normalized ARMA lattice filter structure for the realization of arbitrary IIR digital filters is presented. ne filter structure is minimal in terms of the numbers of coefficients and delays, and exhibits a high degree of structural regularity and modularity. A Levinson-type algorithm is used to compute the reflection coefficients. The magnitude of the reflection coefficients of such a stable filter is bounded by unity and consequently stability can be conveniently checked. Lowpass, highpass, bandpass, and bandstop digital filter realization examples are given.

Keywords

IIR filters; autoregressive moving average processes; band-pass filters; band-stop filters; digital filters; filtering theory; high-pass filters; lattice filters; low-pass filters; Levinson-type algorithm; arbitrary IIR digital filters; coefficients; delays; minimal ARMA lattice filter structure; modularity; normalized ARMA lattice filter structure; reflection coefficients; stable filter; structural regularity; Algorithm design and analysis; Band pass filters; Delay; Digital filters; IIR filters; Lattices; Reflection; Speech synthesis; Stability; Transfer functions;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 2003. ISCAS '03. Proceedings of the 2003 International Symposium on

Print_ISBN

0-7803-7761-3

Type

conf

DOI

10.1109/ISCAS.2003.1205834

Filename

1205834