Title :
An Algorithm of Optimizing Subband Filter Banks Based on ACA
Author :
Jing, Li ; Zhao, Song ; Lingling, Li ; Li Juan ; Xiaoyue, Tang ; Juan, Li
Author_Institution :
Wuhan Univ., Wuhan
Abstract :
Subband filter banks has been widely used many areas, such as speech coding, image coding, adaptive filter, radar , noise elimination etc. A QMF of ant colony algorithm (ACA-QMF) is proposed which optimizes the coefficient of QMF banks to solve the QMF design problem in this paper. In order to realize the performance of QMF banks approximates perfect reconstruction, the algorithm based on the design free from aliasing and phase distortion could control the change of coefficient of QMF banks and minimize the reconstruction error of QMF banks with minishing amplitude distortion. The experimental results show that ACA-QMF could better cancel the distortion by subband coding.
Keywords :
distortion; encoding; filtering theory; optimisation; amplitude distortion; ant colony algorithm; phase distortion; reconstruction error; subband coding; subband filter banks; Adaptive filters; Algorithm design and analysis; Ant colony optimization; Design optimization; Filter bank; Image coding; Image reconstruction; Phase distortion; Radar imaging; Speech coding; Ant Colony Algorithm; QuadratureMirror; Reconstruction Error;
Conference_Titel :
Control Conference, 2007. CCC 2007. Chinese
Conference_Location :
Hunan
Print_ISBN :
978-7-81124-055-9
Electronic_ISBN :
978-7-900719-22-5
DOI :
10.1109/CHICC.2006.4347455
