摘要
本文首先研究了两通道滤波器组设计的完全重构的条件以及Euclidean多项式的性质 ,提出了基于因式分解的两通道完全重构滤波器组的设计方法 .该方法不需要进行强的非线性优化计算而可以实现真正的结构化的完全重构滤波器组 .文中描述了这种方法的推导过程 ,给出了设计步骤 ,最后通过给出的设计例子 。
A highly effective method based on factorization for designing two channel perfect reconstruction (PR) filter banks is presented in this paper.First,the PR condition of two channel filter banks and Euclidean complementary (EC) polynomials are studied.Second,a solution for EC is obtained by constructing a polyphase matrix with a constant determinant based on factorization.Next the design procedures of the method is described.Final some examples are given to illustrate that the method is effective.
出处
《电子学报》
EI
CAS
CSCD
北大核心
2001年第10期1412-1414,共3页
Acta Electronica Sinica
基金
国家自然科学基金 (No .69772 0 2 9)
关键词
因式分解法
完全重构
滤波器组
factorization
perfect reconstruction
Euclidean algorithm
two channel filter banks
