Title :
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
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;
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
DOI :
10.1109/VDAT.2008.4542462
