多项式正交滤波器与共轭正交滤波器组 |
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引用本文: | 金护平. 多项式正交滤波器与共轭正交滤波器组[J]. 工程数学学报, 2002, 19(4): 117-122,67 |
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作者姓名: | 金护平 |
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作者单位: | 中国航空计算技术研究所,西安,710068 |
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摘 要: | 主要讨论了多项式正交滤波器和共轭正交滤波器组的构造方法,首先利用Riesz引理和特殊的余弦三角形多项式,给出了一种多项式正交滤波器的构造算法,该算法可以构造出一系列特性各异的紧支撑正交小波基;还给出了由一个矩阵CQFs派生多个新的矩阵CQFs的共轭正交滤波器组算法,包括由低阶矩阵CQFs构造高阶矩阵CQFs。
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关 键 词: | 共轭正交滤波器组 多项式正交滤波器 矩阵CQFs 完全重构条件 |
文章编号: | 1005-3085(2002)04-0117-06 |
Orthogonal Polynomial Filter and Conjugate Quadrature Multifilter Banks |
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Abstract: | The approaches are presented for constructing orthogonal polynomial filter and matrix CQFs. Firstly, orthogonal polynomial filter is constructed by using Riesz lemma and especial cosine polynomial. By the approaches, a series of compactly supported orthogonal wavelets, which include Daubechies I wavelet, can be constructed. Secondly, the method for constructing new matrix CQFs from old matrix CQFs is obtained. Finally, the relationship between lower matrix CQFs and higher matrix CQFs is establised. |
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Keywords: | orthogonal Polynomial Filter Matrix CQFs Perfect reconstruction conditions |
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