桂林电子科技大学学报2012，Vol.32Issue(3)：193-195,248,4.
基于线性规划的一维DFT调制滤波器组设计
Design of 1D DFT modulated filter banks via linear program
摘要
Abstract
An linear program algorithm is adopted to design ID DFT modulated filter banks. First, the performance measures of the filter bank are converted into functions of the product filter of the analysis filters. Then, the design problem is transformed into a linear program problem with respect to the product filter. The optimal product filter can be efficiently solved from the linear program problem. Finally, the analysis filter can be obtained from the product filter using spectral decomposition. The algorithm avoids the sensitivity to the initial point. The simulations show that compared with the traditional method, the new algorithm can lead to filter bank with improved performance. The improvement of the reconstruction error is about 5 dB and that of stopband attenuation is about 6 dB.关键词
DFT/调制滤波器组/线性规划/乘积滤波器Key words
DFT,- modulated filter bank/ linear program/ product filter分类
信息技术与安全科学引用本文复制引用
周芳..基于线性规划的一维DFT调制滤波器组设计[J].桂林电子科技大学学报,2012,32(3):193-195,248,4.基金项目
广西无线宽带通信与信号处理重点实验室主任基金(PF11054X) （PF11054X）
桂林电子科技大学博士科研基金(UF11014Y) （UF11014Y）
