A universal look-ahead algorithm for pipelining IIR filters

Author

Yen-Liang Chen ; Chun-Yu Chen ; Jheng, Kai Yuan ; An-Yeu Wu

Author_Institution

Grad. Inst. of Electron. Eng., Nat. Taiwan Univ., Taipei

fYear

2008

fDate

23-25 April 2008

Firstpage

259

Lastpage

262

Abstract

Look-ahead (LA) techniques can pipeline IIR digital filters to attain high sampling rate. In the literatures, however, only simple recursive formulas are derived for special cases. In this paper, we present a universal look-ahead (ULA) approach to find the coefficients systematically. This approach is based on that the polynomial multiplication can be expressed in a matrix form. Hence, some matrix operations, such as inversion and multiplication can be applied to calculate the coefficients directly. The proposed approach is suitable for the design of pipelined recursive digital filters with any LA scheme and arbitrary pipelining levels.

Keywords

IIR filters; matrix algebra; polynomials; recursive filters; matrix operations; pipelined recursive IIR digital filters; polynomial multiplication; recursive formulas; sampling rate; universal look-ahead algorithm; Algorithm design and analysis; Clustering algorithms; Digital filters; Hardware; IIR filters; Pipeline processing; Polynomials; Sampling methods; Transfer functions; Very large scale integration;

fLanguage

English

Publisher

ieee

Conference_Titel

VLSI Design, Automation and Test, 2008. VLSI-DAT 2008. IEEE International Symposium on

Conference_Location

Hsinchu

Print_ISBN

978-1-4244-1616-5

Electronic_ISBN

978-1-4244-1617-2

Type

conf

DOI

10.1109/VDAT.2008.4542462

Filename

4542462