A New Low-sensitivity Second-order Allpass Section Suitable for Fractional Delay Filter Realizations

Author

Ivanova, Kamelia S. ; Stoyanov, Georgi K.

Author_Institution

Tech. Univ. of Sofia, Sofia

fYear

2007

fDate

26-28 Sept. 2007

Firstpage

317

Lastpage

320

Abstract

In this paper a new second-order digital allpass section with very low sensitivity for transfer function poles near z=0 is developed and investigated. It is shown that most of the allpass-structures-based fractional-delay (FD) filters are having such poles and there are no suitable allpass sections in the literature. The new section is ensuring high accuracy realization of FD filters even in a severely limited wordlength environment.

Keywords

all-pass filters; delay filters; transfer functions; digital IIR filters; fractional delay filter realizations; low-sensitivity second-order allpass section; transfer function poles; Delay effects; Delay estimation; Digital filters; Finite impulse response filter; Frequency; IIR filters; Modems; Speech processing; Timing; Transfer functions; Allpass sections; Digital IIR filters; Fractional-delay filters; Low sensitivity;

fLanguage

English

Publisher

ieee

Conference_Titel

Telecommunications in Modern Satellite, Cable and Broadcasting Services, 2007. TELSIKS 2007. 8th International Conference on

Conference_Location

Serbia

Print_ISBN

978-1-4244-1467-3

Electronic_ISBN

978-1-4244-1468-0

Type

conf

DOI

10.1109/TELSKS.2007.4376001

Filename

4376001

Link To Document

https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1997440