Design of Nearly Perfect Reconstruction Low Group Delay Cosine-Modulated Filter Banks

Author

Goh, B.A. ; McLernon, D.C.

Author_Institution

Inst. of Integrated Inf. Syst., Leeds Univ.

fYear

0

fDate

0-0 0

Firstpage

64

Lastpage

68

Abstract

This paper presents a new analysis and synthesis filters design method for achieving nearly perfect reconstruction low group delay cosine-modulated filter bank (CMFB). The objective is to show how far we can reduce the overall group delay of this proposed CMFB by using this new analysis and synthesis filter prototypes. Simulation results show that the overall group delay of our proposed approach can be reduced to about 45% of the original CMFB group delay. In addition, the mean-square-error-reconstruction performance of our new method is also 3.9 dB superior compared to that for the original CMFB

Keywords

channel bank filters; mean square error methods; modulation; signal reconstruction; CMFB group delay; cosine-modulated filter bank; mean-square-error-reconstruction; synthesis filter; Channel bank filters; Delay; Design methodology; Filter bank; Image reconstruction; Information analysis; Information filtering; Information systems; Prototypes; Speech coding;

fLanguage

English

Publisher

ieee

Conference_Titel

Information, Communications and Signal Processing, 2005 Fifth International Conference on

Conference_Location

Bangkok

Print_ISBN

0-7803-9283-3

Type

conf

DOI

10.1109/ICICS.2005.1689005

Filename

1689005