基于增强迭代重加权正交匹配追踪算法的稀疏余弦调制滤波器组设计  

The Design of Sparse Cosine-modulated Filter Banks Based on Enhanced Iterative Reweighted OMP

作　　者：王鑫雨 赵加祥[1] 李怡 Wang Xinyu;Zhao Jiaxiang;Li Yi(College of Electronic Information and Optical Engineering,Nankai University,Tianjin 300071,China)

机构地区：[1]南开大学电子信息与光学工程学院,天津300071

出　　处：《南开大学学报（自然科学版）》2022年第6期69-73,共5页Acta Scientiarum Naturalium Universitatis Nankaiensis

摘　　要：提出了一种基于增强迭代重加权正交匹配追踪算法设计稀疏的余弦调制滤波器组.通过引入Frobenious范数对加速寻找余弦调制滤波器组中原型滤波器稀疏的位置,引入与残差相关的权重均衡残差寻找最优解.设计出的稀疏余弦调制滤波器组,能够实现近似完全重构,性能较为优越.A novel cosine-modulated filter banks based on enhanced iterative reweighted OMP has been proposed. This algorithm introduce Frobenious norm, which facilitate the search for sparse location of prototype filter, and weight related to residual, which equalize residual to find optimal solution. Through simulation and compare, proposed algorithm can design high performance cosine-modulated filter banks satisfying near perfect reconstruction.

关 键 词：稀疏余弦调制滤波器组 有限长单位冲激响应 Frobenious范数 正交匹配追踪 

分 类 号：TN713[电子电信—电路与系统]