Title :
Two dimensional IIR digital notch filter design
Author :
Pei, Soo-Chang ; Tseng, Chien-Cheng
Author_Institution :
Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan
fDate :
3/1/1994 12:00:00 AM
Abstract :
In this paper, the two dimensional (2D) IIR digital notch filter design problem is investigated. First, we develop a simple algebraic method for 2D IIR notch filter design. This approach not only has closed-form transfer function but also satisfies the bounded-input/bounded-output (BIBO) stability condition. Next, we apply the 2D notch filter to eliminate sinusoidal/narrowband interferences superimposed on an image. Simulation results are presented to demonstrate the effectiveness of this approach
Keywords :
filtering and prediction theory; image processing; interference suppression; notch filters; stability; transfer functions; two-dimensional digital filters; 2D notch filter; BIBO stability; IIR digital notch filter; algebraic method; bounded-input/bounded-output stability; closed-form transfer function; image interference; narrowband interference; sinusoidal interference; two dimensional filter design; Band pass filters; Design methodology; Digital filters; Frequency; IIR filters; Interference; Narrowband; Signal design; Stability; Transfer functions;
Journal_Title :
Circuits and Systems II: Analog and Digital Signal Processing, IEEE Transactions on
