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首页> 外文会议>European Signal Processing Conference(EUSIPCO 2005); 20050904-08; Antalya(TK) >DESIGN OF UNEQUAL-LENGTH LINEAR-PHASE FILTER BANKS WITHOUT REDUNDANCY
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DESIGN OF UNEQUAL-LENGTH LINEAR-PHASE FILTER BANKS WITHOUT REDUNDANCY

机译：无冗余的不等长线性相位滤波器组的设计

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摘要

In this paper, we present a new structure for linear-phase filter banks without redundancy, which have unequal-length filters at each sub-band. First, we extend the simplified lattice structure of the linear-phase filter bank to the unequal-length linear-phase paraunitary filter bank. In general, the unequal-length linear-phase paraunitary filter bank has equal-length filters at both the analysis and the synthesis bank because the synthesis bank is a transposed version of the analysis one, while the biorthogonal one does not. So, we discuss the conditions that the linear-phase biorthogonal filter bank has unequal-length filters at 1) the analysis bank, 2) the synthesis bank, and 3) both the analysis and the synthesis banks. Finally, several design and image coding examples are shown.
机译：在本文中，我们为没有冗余的线性相位滤波器组提供了一种新结构，该结构在每个子带都具有不等长的滤波器。首先，我们将线性相位滤波器组的简化晶格结构扩展到不等长线性相位超unit正滤波器组。通常，不等长线性相位超unit滤波器组在分析和合成库都具有等长滤波器，因为合成库是分析库的转置版本，而双正交库不是。因此，我们在1）分析库，2）合成库和3）分析库和合成库中讨论了线性相位双正交滤波器组具有不等长滤波器的条件。最后，显示了几个设计和图像编码示例。

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