Spatial-domain design of two-dimensional recursive digital filters

Author

Raymond, Don M. ; Fahmy, Moustafa M.

Author_Institution

Dept. of Electr. Eng., Queen´´s Univ., Kingston, Ont., Canada

Volume

36

Issue

6

fYear

1989

fDate

6/1/1989 12:00:00 AM

Firstpage

901

Lastpage

905

Abstract

A technique using linear algebraic projection is proposed to design two-dimensional (2-D) recursive digital filters that best approximate a desired input/output relationship in terms of total weighted squared error. A 2-D difference equation representation is used. Examples of first-quadrant and asymmetric half-plane filters are presented and compared with other spatial-domain designs. One of the main advantages of the proposed method is that the solution is obtained directly with no need for iterations

Keywords

difference equations; filtering and prediction theory; optimisation; two-dimensional digital filters; 2D difference equation; 2D filters; IIR filtering; asymmetric half-plane filters; first-quadrant filter; linear algebraic projection; optimisation procedure; spatial-domain designs; total weighted squared error; two-dimensional recursive digital filters; Councils; Difference equations; Digital filters; Finite impulse response filter; IIR filters; NASA; Publishing; Transfer functions; Two dimensional displays; Vectors;

fLanguage

English

Journal_Title

Circuits and Systems, IEEE Transactions on

Publisher

ieee

ISSN

0098-4094

Type

jour

DOI

10.1109/31.90414

Filename

90414