General method for perfect reconstruction subband processing of finite length signals using linear extensions

Author

Silva, Vitor ; De Sa, Luis

Author_Institution

Inst. de Telecomunicaoes, Pola II da Univ. de Coimbra, Portugal

Volume

47

Issue

9

fYear

1999

fDate

9/1/1999 12:00:00 AM

Firstpage

2572

Lastpage

2575

Abstract

A general approach to the nonexpansive M band decomposition of finite length signals is presented. The technique is based on linear signal extensions and can be applied to all types of linear- and nonlinear phase M-band perfect-reconstruction filter banks. The signal expansion is described by a linear transformation on the input signal, and the extended subband samples can be easily found using simple matrix computations

Keywords

channel bank filters; filtering theory; linear phase filters; matrix algebra; nonlinear filters; signal reconstruction; signal sampling; extended subband samples; finite length signals; general method; input signal; linear phase M-band filter banks; linear signal extensions; linear transformation; matrix computations; nonexpansive M band decomposition; nonlinear phase M-band filter banks; perfect reconstruction subband processing; perfect-reconstruction filter banks; signal expansion; Convolution; Filter bank; Image coding; Image reconstruction; Nonlinear filters; Signal analysis; Signal processing; Signal resolution; Signal synthesis; Switches;

fLanguage

English

Journal_Title

Signal Processing, IEEE Transactions on

Publisher

ieee

ISSN

1053-587X

Type

jour

DOI

10.1109/78.782209

Filename

782209