An optimal order structure for 2-D digital filters

Author

Zilouchian, Ali ; Szabo, Bela

Author_Institution

Dept. of Electr. Eng., Florida Atlantic Univ., Boca Raton, FL, USA

fYear

1995

fDate

7-9 Mar 1995

Firstpage

24

Lastpage

28

Abstract

The model approximation as well as implementation of 2D recursive separable-in-denominator (RSD) digital filters with fixed-point arithmetic are investigated. A minimum-order structure is proposed based on the optimality condition of an error criteria due to both approximation and implementation. In order to reduce the number of multiplications for an optimal order realization, a class of second-order structures is proposed. This class of realizations presents a good compromise between low round-off noise, order reduction, number of multipliers and hardware complexity

Keywords

digital arithmetic; minimisation; recursive filters; roundoff errors; two-dimensional digital filters; 2D recursive separable-in-denominator digital filters; error criteria; fixed-point arithmetic; hardware complexity; implementation; minimum-order structure; model approximation; multiplications; optimal order realization; optimal order structure; order reduction; round-off noise; second-order structures; Control systems; Digital filters; Digital signal processing; Estimation theory; Fixed-point arithmetic; Hardware; Noise reduction; Quantization; State-space methods; Transfer functions;

fLanguage

English

Publisher

ieee

Conference_Titel

Southcon/95. Conference Record

Conference_Location

Fort Lauderdale, FL

Print_ISBN

0-7803-2576-1

Type

conf

DOI

10.1109/SOUTHC.1995.516072

Filename

516072