Pipelining of IIR digital filters

Article type: Research Article

Authors: Kazlauskas, Kazys

Affiliations: Institute of Mathematics and Informatics, 2600 Vilnius, Akademijos St. 4, Lithuania

Abstract: In this paper, we propose to present the direct form recursive digital filter as a state space filter. Then, we apply a look-ahead technique and derive a pipelined equation for block output computation. In addition, we study the stability and multiplication complexity of the proposed pipelined-block implementation and compare with complexities of other methods. An algorithm is derived for the iterative computation of pipelined-block matrices.

Keywords: digital filters, recursive, state space, pipelining, stability, complexity

DOI: 10.3233/INF-1996-7102

Journal: Informatica, vol. 7, no. 1, pp. 15-26, 1996