Optimum subband filter bank design and compensation in presence of quantizers

Author

Park, Kyusik ; Haddad, R.A.

Author_Institution

Dept. of Electr. Eng., Polytechnic Univ., Brooklyn, NY, USA

fYear

1993

fDate

1-3 Nov 1993

Firstpage

80

Abstract

Optimum M-band subband codec structure in the presence of PDF-optimized quantizers is proposed. Using the polyphase decomposition of analysis/synthesis filter bank(FB), we derive the formula for mean square error(MSE) at the reconstructed output. We show that the optimum M-band FB structure can be designed by a suitable choice of a simple scalar compensator following each quantizer. Specific design examples have been developed for two different classes of filter banks, the paraunitary FB and the biorthogonal FB for the 2 channel case

Keywords

codecs; digital filters; encoding; filtering theory; quantisation (signal); MSE; PDF optimized quantizers; analysis/synthesis filter bank; biorthogonal filter bank; mean square error; optimum subband filter bank compensation; optimum subband filter bank design; paraunitary filter bank; polyphase decomposition; quantizer; reconstructed output; scalar compensator; subband codec; Codecs; Covariance matrix; Data compression; Density functional theory; Design optimization; Filter bank; Power generation; Quantization; Signal design; Signal synthesis;

fLanguage

English

Publisher

ieee

Conference_Titel

Signals, Systems and Computers, 1993. 1993 Conference Record of The Twenty-Seventh Asilomar Conference on

Conference_Location

Pacific Grove, CA

ISSN

1058-6393

Print_ISBN

0-8186-4120-7

Type

conf

DOI

10.1109/ACSSC.1993.342474

Filename

342474