Title :
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
fDate :
6/1/1989 12:00:00 AM
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;
Journal_Title :
Circuits and Systems, IEEE Transactions on
