1/M-octave-band filter banks and wavelets

Author

Schönle, Martin ; Fliege, N.J.

Author_Institution

Inst. of Mobile & Satellite Commun. Technique, Kamp-Lintfort, Germany

Volume

4

fYear

1997

fDate

9-12 Jun 1997

Firstpage

2413

Abstract

In this paper a new filter bank is presented. Its main features are exact 1/M-octave-band resolution, subband signals without aliasing and phase distortion, and perfect reconstruction. The system is based on oversampled complementary filter banks. Besides the usual dyadic sampling rate decimation techniques single-sideband modulation and demodulation are used. It is shown, that this filter bank constitutes a Discrete Wavelet Transform. Typical applications are the analysis and simulation of room acoustics in civil engineering and the signal decomposition in hearing aids

Keywords

band-pass filters; digital filters; transforms; wavelet transforms; 1/M-octave-band filter banks; discrete wavelet transform; dyadic sampling rate decimation techniques; oversampled complementary filter banks; perfect reconstruction; room acoustics; signal decomposition; single-sideband demodulation; single-sideband modulation; subband signals; wavelets; Acoustic applications; Analytical models; Civil engineering; Demodulation; Discrete wavelet transforms; Filter bank; Phase distortion; Sampling methods; Signal analysis; Signal resolution;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 1997. ISCAS '97., Proceedings of 1997 IEEE International Symposium on

Print_ISBN

0-7803-3583-X

Type

conf

DOI

10.1109/ISCAS.1997.612810

Filename

612810