Design of Variable Fractional Delay Filter Using DFT Interpolation

Author

Upadhyay, D. ; Chaudhary, Vishal

Author_Institution

Div. of Electron. & Commun. Eng., Netaji Subhas Inst. of Technol., Delhi, India

fYear

2009

fDate

27-28 Oct. 2009

Firstpage

691

Lastpage

693

Abstract

In this paper, design of variable fractional delay filter is investigated. DFT Interpolation method is utilized, with suitable index mapping to design a VFD FIR filter. Design examples are demonstrated to evaluate the effectiveness of the designed filter with the help of magnitude, group delay & relative error. Results of designed VFD FIR filter are within acceptable limits over a wide range of frequency. Finally, the realization of VFD FIR filter is proposed.

Keywords

FIR filters; delay filters; discrete Fourier transforms; interpolation; network synthesis; DFT interpolation method; FIR filter design; discrete Fourier transform; finite impulse response; group delay; index mapping; relative error; variable fractional delay filter; Communications technology; Delay effects; Delay lines; Design engineering; Digital signal processing; Discrete Fourier transforms; Finite impulse response filter; Frequency response; Interpolation; Speech coding; Discrete Fourier Transform (DFT) Interpolation; Finite Impulse Response; Fractional Delay filter; Index Mapping;

fLanguage

English

Publisher

ieee

Conference_Titel

Advances in Recent Technologies in Communication and Computing, 2009. ARTCom '09. International Conference on

Conference_Location

Kottayam, Kerala

Print_ISBN

978-1-4244-5104-3

Electronic_ISBN

978-0-7695-3845-7

Type

conf

DOI

10.1109/ARTCom.2009.41

Filename

5328962