Frequency Transformations in Two-Band Wavelet IIR Filter Banks

Author

Damjanovic, Sanja ; Milic, Ljiljana ; Saramaki, Tapio

Author_Institution

Mihajlo Pupin Inst., Belgrade

Volume

1

fYear

2005

fDate

21-24 Nov. 2005

Firstpage

88

Lastpage

91

Abstract

We consider an extension of the ordinary dyadic wavelet transform implemented by iteration of the two-band orthogonal rational filter banks on the lowpass branch that provides a flexible orthogonal tiling of the time-frequency plane. We design the rational two-band orthogonal IIR filter banks starting from the fifth order halfband filter bank with desired regularity order and generate pertaining wavelet and scaling functions. The implementation is based on the lattice wave digital filter structures. We show the appropriate time-frequency plane tiling

Keywords

IIR filters; channel bank filters; lattice filters; low-pass filters; wavelet transforms; dyadic wavelet transform; flexible orthogonal tiling; frequency transformation; halfband filter bank; lattice wave digital filter structures; lowpass branch; orthogonal rational filter banks; time frequency plane tiling; wavelet IIR filter banks; Digital filters; Electronic mail; Filter bank; Finite impulse response filter; IIR filters; Lattices; Sampling methods; Signal detection; Time frequency analysis; Wavelet transforms; Filter banks; frequency transformations; lattice wave digital filters; wavelet transform;

fLanguage

English

Publisher

ieee

Conference_Titel

Computer as a Tool, 2005. EUROCON 2005.The International Conference on

Conference_Location

Belgrade

Print_ISBN

1-4244-0049-X

Type

conf

DOI

10.1109/EURCON.2005.1629865

Filename

1629865