Two dimensional IIR and FIR digital notch filter design

Author

Pei, Soo-Chang ; Tseng, Chien-Cheng

Author_Institution

Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan

fYear

1993

fDate

3-6 May 1993

Firstpage

890

Abstract

The two-dimensional 2-D digital notch filter design problem is investigated. A simple algebraic method for 2-D infinite impulse response (IIR) notch filter design is developed. This approach not only has closed-form transfer function, but also satisfies the bounded input bounded output (BIBO) stability condition. The Lagrange multiplier method is used to design 2-D finite impulse response (FIR) notch filters. This design is optimal in least square sense. The 2-D notch filter is applied to eliminate sinusoidal or narrowband interferences superimposed on an image. Simulation results are presented to demonstrate the effectiveness of these approaches

Keywords

FIR filters; IIR filters; filtering theory; image processing; interference suppression; notch filters; stability; transfer functions; two-dimensional digital filters; 2D FIR filters; 2D IIR filters; BIBO stability; Lagrange multiplier method; algebraic method; bounded input bounded output; closed-form transfer function; digital notch filter design; finite impulse response; image interference; infinite impulse response; narrowband interferences; sinusoidal interference; Digital filters; Finite impulse response filter; IIR filters; Interference elimination; Lagrangian functions; Least squares methods; Narrowband; Stability; Transfer functions; Two dimensional displays;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 1993., ISCAS '93, 1993 IEEE International Symposium on

Conference_Location

Chicago, IL

Print_ISBN

0-7803-1281-3

Type

conf

DOI

10.1109/ISCAS.1993.393867

Filename

393867