Title :
Multidimensional filter banks design by direct optimization
Author :
Nguyen, Truong T. ; Oraintara, Soontorn
Author_Institution :
Dept. of Electr. Eng., Texas Univ., Arlington, TX, USA
Abstract :
In this paper, we designed multidimensional filter banks by direct optimization in the frequency domain. The desired properties of a filter bank (such as zero aliasing, perfect reconstruction) are formulated as an objective function of the filter coefficients. The design procedures minimize the objective function by iterative quadratic programming with linear constraints. Our design examples show that the method is flexible towards frequency support configurations, smoothness constraints, and can be used to design multidimensional perfect reconstruction filter banks having up to eight channels.
Keywords :
channel bank filters; iterative methods; minimisation; multidimensional digital filters; quadratic programming; signal reconstruction; direct optimization; frequency support configurations; iterative quadratic programming; linear constraints; multidimensional filter banks; objective function minimization; perfect reconstruction; smoothness constraints; zero aliasing; Channel bank filters; Delay; Design methodology; Design optimization; Filter bank; Frequency domain analysis; Matrix decomposition; Multidimensional systems; Nonlinear filters; Quadratic programming;
Conference_Titel :
Circuits and Systems, 2005. ISCAS 2005. IEEE International Symposium on
Print_ISBN :
0-7803-8834-8
DOI :
10.1109/ISCAS.2005.1464782