DocumentCode :
293038
Title :
A new 2-D zero phase digital filter design with quadrantally symmetric or antisymmetric properties
Author :
Chang, J.Y. ; Wang, W.H.
Author_Institution :
Dept. of Control Eng., Nat. Chiao Tung Univ., Hsinchu, Taiwan
Volume :
2
fYear :
1994
fDate :
30 May-2 Jun 1994
Firstpage :
585
Abstract :
A closed-form least-squares solution for the problem of designing two-dimensional (2-D) real zero phase Finite Impulse Response (FIR) filters with quadrantally symmetric or antisymmetric properties is obtained. Then a 2-D Infinite Impulse Response (IIR) filter is synthesized as an approximation of the designed 2-dimensional FIR filter by using the decomposition theorem and the 1-D balanced approximation (BA) method. The designed 2-D IIR filter retains good zero phase property over the passband region. The magnitude error between the 2-D FIR and the 2-D IIR filter is small and can be obtained from the BA method
Keywords :
Digital filters; Electronic mail; Finite impulse response filter; Frequency response; IIR filters; Matrix decomposition; Nonlinear filters; Passband; Symmetric matrices; Two dimensional displays;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Circuits and Systems, 1994. ISCAS '94., 1994 IEEE International Symposium on
Conference_Location :
London
Print_ISBN :
0-7803-1915-X
Type :
conf
DOI :
10.1109/ISCAS.1994.409057
Filename :
409057
Link To Document :
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