High accuracy design and realization of fixed and variable allpass-based fractional delay digital filters

Author

Stoyanov, Georgi K. ; Nikolova, Kamelia S. ; Markova, Valentina I.

Author_Institution

Fac. of Telecommun., Tech. Univ. of Sofia, Sofia, Bulgaria

fYear

2009

fDate

7-9 Oct. 2009

Firstpage

167

Lastpage

176

Abstract

In this paper new methods for low-sensitivity design of allpass-based fixed and variable fractional delay filters are proposed. They are based on a sensitivity minimization of each individual first- and second-order allpass section in the cascade realization depending on their transfer function pole positions. Thus a higher accuracy of implementation and tuning, shorter wordlength and efficient multiplierless realizations are achieved.

Keywords

all-pass filters; circuit tuning; delay filters; design; digital filters; minimisation; poles and zeros; transfer functions; fixed allpass-based fractional delay digital filter; high accuracy design; low-sensitivity design; multiplierless realization; sensitivity minimization; transfer function pole positions; tuning; variable fractional delay filters; wordlength; Application software; Circuits; Delay; Design methodology; Digital filters; Finite impulse response filter; Frequency; IIR filters; Minimization; Transfer functions; Allpass filters; Digital Filters; Fractional delay filters; High Accuracy; Low sensitivity;

fLanguage

English

Publisher

ieee

Conference_Titel

Telecommunication in Modern Satellite, Cable, and Broadcasting Services, 2009. TELSIKS '09. 9th International Conference on

Conference_Location

Nis

Print_ISBN

978-1-4244-4382-6

Electronic_ISBN

978-1-4244-4383-3

Type

conf

DOI

10.1109/TELSKS.2009.5339430

Filename

5339430