How to complete paraunitary filter banks and simultaneously preserve linear phase?

Author

Chen, Ying-Jui ; Amaratunga, Kevin

Author_Institution

Intelligent Eng. Syst. Lab, Massachusetts Inst. Technol., Cambridge, MA, USA

Volume

2

fYear

2004

fDate

17-21 May 2004

Abstract

In this paper, the completion of linear-phase paraunitary filter banks (LPPUFBs) is presented. Given an M-band LPPUFB-admissible scaling filter H₀(z), the proposed method finds a complete parameterization such that the resulting M - 1 bandpass/highpass filters Hi(z) and the given filter Ho(z) form an LPPUFB. Results from completion of a general PUFB are used in combination with the LP-generating dyadic-based structure, so that the scaling filter H₀(z) of the resulting LPPUFB is as prescribed, and linear phase of the filter bank is guaranteed. The design procedure is demonstrated by an example.

Keywords

band-pass filters; channel bank filters; high-pass filters; linear phase filters; M-band LPPUFB-admissible scaling filter; bandpass filters; dyadic-based structure; highpass filters; linear-phase filter banks; paraunitary filter banks; scaling filter; Band pass filters; Channel bank filters; Data compression; Delay; Filter bank; Filtering theory; Low pass filters; Nonlinear filters; Signal processing; Vectors;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech, and Signal Processing, 2004. Proceedings. (ICASSP '04). IEEE International Conference on

ISSN

1520-6149

Print_ISBN

0-7803-8484-9

Type

conf

DOI

10.1109/ICASSP.2004.1326427

Filename

1326427