Title :
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
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;
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
DOI :
10.1109/ARTCom.2009.41
