Multistage implementation of optimal reconstruction in noisy filter banks

Author

Bradeanv, Onoriu ; Appel, Ulrich

Author_Institution

Commun. Dept., Mil. Tech. Acad., Bucharest, Romania

fYear

1998

fDate

8-11 Sept. 1998

Firstpage

1

Lastpage

4

Abstract

It is well known that conventional design techniques of filter banks lose their ability to guarantee the perfect reconstruction condition when additive noise disturbs the subband sequences. The alternative synthesis scheme compensates the effects of the subband noise by estimating the transmitted samples minimizing the reconstruction mean squarred error, MSE. This process is based on the state-space model of the standard block interpolation process. According to relation between the decimation/interpolation factor and the model order, the appropriate computational efficient implementation schemes were developed.

Keywords

channel bank filters; interpolation; mean square error methods; state-space methods; MSE; additive noise; alternative synthesis scheme; computational efficient implementation schemes; decimation factor; mean squarred error; model order; multistage implementation; noisy filter banks; optimal reconstruction; standard block interpolation process; state-space model; subband noise; subband sequences; Computational modeling; Estimation; Interpolation; Noise measurement; Signal to noise ratio; Standards;

fLanguage

English

Publisher

ieee

Conference_Titel

Signal Processing Conference (EUSIPCO 1998), 9th European

Conference_Location

Rhodes

Print_ISBN

978-960-7620-06-4

Type

conf

Filename

7089811