Design of Perfect Reconstruction Filter Banks based on Genetic Algorithm

• Main Authors: Yuan-Peir Chen, 陳元培
• Other Authors: 黃依賢
• Format: Others
• Language: zh-TW
• Published: 2006
• Online Access: http://ndltd.ncl.edu.tw/handle/24071183098960833183

碩士 === 元智大學 === 資訊工程學系 === 94 === In this thesis, a new approach for two-channel FIR linear phase filter banks with canonical signed digit and near perfect-reconstruction properties is presented. The considered problem includes both the perfect-reconstruction error and the analysis filters with equiripple. Applying the CSD GA, the coefficient of the analysis filters satisfies canonical signed digit number system. The coefficient of the analysis filters with the property of no consecutive nonzero digits is very simple to implement an FIR filter banks in hardware. Three design examples are provided for illustration and comparison. The simulation results are presented to demonstrate the effectiveness of this proposed design technique.