Title :
Adaptive wave digital fan filters
Author :
Tan, Alfredo C. ; Chen, Sheng-Tsai ; Basu, Sankar
Author_Institution :
Dept. of Electr. Eng., Fairleigh Dickinson Univ., Teaneck, NJ, USA
Abstract :
Adaptive two-dimensional (2-D) fan filters based on least mean square algorithm and 2-D wave digital filter structure are presented. The weight updating equations as well as the equations for computing the gradient components of signals in two-dimensional wave digital filter adaptors are derived and specifically applied to wave digital quadrant and narrowband fan filters. Computer simulations are also conducted to show their potential applications to 2-D system identification and noise cancellation in noisy images
Keywords :
adaptive filters; adaptive signal processing; identification; image processing; least mean squares methods; noise; two-dimensional digital filters; wave digital filters; 2-D system identification; 2D wave digital filter; adaptive 2D fan filters; adaptive wave digital fan filters; gradient components; least mean square algorithm; noise cancellation; noisy images; two-dimensional wave digital filter adaptors; wave digital narrowband fan filters; wave digital quadrant fan filters; weight updating equations; Adaptive filters; Application software; Computer simulation; Digital filters; Equations; Least mean square algorithms; Narrowband; Noise cancellation; System identification; Two dimensional displays;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1994. ICASSP-94., 1994 IEEE International Conference on
Conference_Location :
Adelaide, SA
Print_ISBN :
0-7803-1775-0
DOI :
10.1109/ICASSP.1994.389937
