Optimal design of variable fractional-delay digital filters

Author

Deng, Ean-Bo

Author_Institution

Dept. of Inf. Sci., Toho Univ., Chiba, Japan

fYear

2001

fDate

6/23/1905 12:00:00 AM

Firstpage

353

Lastpage

356

Abstract

This paper presents a closed-form solution for obtaining the optimal coefficients of variable FIR filters with continuously adjustable fractional-delay (FD) response. The design is formulated as a weighted-least-squares (WLS) approximation problem without discretizing the frequency and fractional-delay parameters. Compared with the existing WLS method, the discretization-free one can yield a closed-form optimal solution with considerably reduced computational complexity

Keywords

FIR filters; delay filters; digital filters; filtering theory; frequency response; least squares approximations; signal processing; FIR filters; WLS method; closed-form solution; computational complexity; continuously adjustable fractional-delay response; digital signal processing; optimal coefficients; variable fractional-delay digital filters; weighted-least-squares approximation; Closed-form solution; Computational complexity; Digital filters; Digital signal processing; Electronic mail; Finite impulse response filter; Frequency response; Information science; Lagrangian functions; Polynomials;

fLanguage

English

Publisher

ieee

Conference_Titel

Statistical Signal Processing, 2001. Proceedings of the 11th IEEE Signal Processing Workshop on

Print_ISBN

0-7803-7011-2

Type

conf

DOI

10.1109/SSP.2001.955295

Filename

955295