| 非奇异多通道滤波器组合及其优化设计 |
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| 引用本文： | 吴敏金,张良仪. 非奇异多通道滤波器组合及其优化设计[J]. 电子学报, 2006, 34(8): 1492-1496 |
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| 作者姓名： | 吴敏金 张良仪 |
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| 作者单位： | 华东师范大学华贸学院,上海,200062;华东师范大学华贸学院,上海,200062 |
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| 摘 要： | 本文将系统地考察多通道滤波器组合,定义一大类非奇异多通道滤波器组合,导出正规型多通道滤波器组合的分析、合成与传递方程;讨论其归一化、平滑度与对称性的优化约束;特别地提出基于零谱矩阶数的优化方法以提高滤波器在通带与阻带的平滑度,即所谓零谱矩滤波器;给出对称多通道滤波器组合及其设计示例,供信号处理各领域使用.
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| 关 键 词： | 多通道滤波器组合 完全重构方程 零谱矩滤波器 |
| 文章编号： | 0372-2112（2006）08-1492-05 |
| 收稿时间： | 2004-06-29 |
| 修稿时间： | 2004-06-292006-01-06 |
Nonsingular Multi-Channel Filter Bank and Its Optimizing Design |
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| WU Min-jin,ZHANG Liang-yi. Nonsingular Multi-Channel Filter Bank and Its Optimizing Design[J]. Acta Electronica Sinica, 2006, 34(8): 1492-1496 |
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| Authors: | WU Min-jin ZHANG Liang-yi |
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| Affiliation: | Huamao College,East China Normal University,Shanghai 200062,China |
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| Abstract: | Multi-channel filter bank(MFB) is investigated systematically.A kind of nonsingular multi-channel filter banks(NMFB) is defined.The analysis equations,synthesis equations and transfer equations of NMFB are introduced.And the optimizing restrictions for normalizing,smoothing and symmetry of filters are discussed.Particularly,the concept of zero spectrum moment filters to optimize filter's character is proposed.At last the design procedure and example of symmetric multi-channel filter bank are given. |
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| Keywords: | multi-channel filter bank perfect reconstruction equation zero spectrum moment filters |
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