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多小波框架的构造理论 被引量:14

The construct theory of multiwavelet frames
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摘要 本文给出了多小波框架的sub-QMF条件,提出了多小波框架低通滤波器的参数化设计,由正交分解和矩阵的酉扩张得到其相应的高通滤波器表示的整套多小波框架设计的参数化方法,同时针对多描述编码的需求,构造了两个长折叠对称带参数的多小波紧框架. In this paper,we give the sub-quadrature mirror filter(sub-QMF) condition about the multiwavelet frame,and propose the complete method that constructs corresponding high-pass filters based on design of lowpass filters using unitary matrix extension.And aiming at the multiple description coding,we design two-length parametric multiwavelet frames with asymmetrical folds.
作者 郭蔚 彭立中
出处 《中国科学:数学》 CSCD 北大核心 2010年第11期1115-1128,共14页 Scientia Sinica:Mathematica
基金 国家自然科学基金数学天元基金(批准号:10926179) 河北省科学技术研究与发展计划项目(批准号:072435158D 09213515D 09213575D)资助项目
关键词 多小波框架 多小波框架的参数化 低通和高通滤波器的设计 多描述编码 multiwavelet frames parameterizations of multiwavelet frames lowpass and highpass filter design multiple description coding
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