| 一种新的子带滤波器组的设计 |
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| 引用本文： | 黄斌,陶玉福,朱冲.一种新的子带滤波器组的设计[J].桂林电子科技大学学报,2009,29(1). |
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| 作者姓名： | 黄斌 陶玉福 朱冲 |
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| 作者单位： | 桂林电子科技大学信息与通信学院,广西,桂林,541004 |
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| 基金项目： | 广西研究生教育创新计划 |
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| 摘 要： | 子带自适应滤波器系统的自适应滤波器系数是动态更新的,子带信号通过具有任意幅度和相位响应的滤波器时,完全重构滤波器组消除混叠影响的性能就得不到保证.为了克服这一缺点,通过一种新的子带滤波器组的设计方法,把分析综合滤波器作为一个整体,采用无约束二次优化方法,使综合滤波器组匹配分析滤波器组,在输出信号里单独抑制子带内的混叠失真.性能分析结果表明,该滤波器组的设计方法是有效的.
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| 关 键 词： | 子带自适应滤波 滤波器组 混叠失真 |
Design of Novel Subband Filter Banks |
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| HUANG Bin,TAO Yu-fu,ZHU Chong.Design of Novel Subband Filter Banks[J].Journal of Guilin Institute of Electronic Technology,2009,29(1). |
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| Authors: | HUANG Bin TAO Yu-fu ZHU Chong |
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| Affiliation: | School of Information and Communication Engineering;Guilin University of Electronic Technology;Guilin 541004;China |
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| Abstract: | Adaptive filter coefficient is updated dynamically in subband adaptive filter system.When the subband signals are modified by filters with arbitrary magnitude and phase response,the perfect reconstruction property with aliasing cancellation is not maintained.In order to overcome this shortcoming,this paper proposes a design of novel subband filter banks the analysis filter and synthesis filter as a whole,using unconstrained quadratic optimization,let the synthesis filter banks match analysis filter banks,an... |
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| Keywords: | subband adaptive filter filter banks aliasing distortion |
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