Title :
Realization of lattice-form separable-denominator 2D adaptive filters
Author :
Kawamata, Masayuki ; Kawakami, Eiichiro ; Higuchi, Tatsuo
Author_Institution :
Dept. of Electron. Eng., Tohoku Univ., Sendai, Japan
Abstract :
Separable-denominator two-dimensional (SD-2D) adaptive filters are realized in the lattice-form and in the direct-form. The stability test for these SD-2D adaptive filters can be simplified to that for one dimensional (1D) recursive filters. Improvements of SD-2D adaptive filters over a nonrecursive 2D adaptive filter are shown by the experiments on 2D system identifications. Moreover, it is shown by experiments on noise reduction that the lattice-form SD-2D adaptive filter is superior to the direct-form counterpart
Keywords :
adaptive filters; adaptive signal processing; circuit stability; filtering theory; lattice filters; two-dimensional digital filters; 2D adaptive filters; 2D system identifications; direct form; lattice form; separable-denominator filters; stability test; Adaptive filters; Delay; Filtering; Lattices; Noise reduction; Polynomials; Signal processing; Stability; Testing; Transfer functions;
Conference_Titel :
Circuits and Systems, 1993., ISCAS '93, 1993 IEEE International Symposium on
Conference_Location :
Chicago, IL
Print_ISBN :
0-7803-1281-3
DOI :
10.1109/ISCAS.1993.393716
