On the subband orthogonality of cosine-modulated filter banks

被引：0
|
作者：
Lee, KA [1 ]
Gan, WS [1 ]
机构：
[1] Nanyang Technol Univ, Sch Elect & Elect Engn, Digital Signal Proc Lab, Singapore 639798, Singapore
来源：
ISPACS 2005: PROCEEDINGS OF THE 2005 INTERNATIONAL SYMPOSIUM ON INTELLIGENT SIGNAL PROCESSING AND COMMUNICATION SYSTEMS | 2005年
关键词：
D O I：
暂无
中图分类号：
TP18 [人工智能理论];
学科分类号：
081104 ; 0812 ; 0835 ; 1405 ;
摘要：
The second-order characteristics of cosine-modulated filter banks are formulated and analyzed. We show that the outputs of a cosine-modulated filter bank are always properly phase-aligned in such a way that they are orthogonal at zero lag for arbitrary types of input signal. These,subband-orthogonality properties are desirable in improving the efficiency and effectiveness of signal processing algorithms.
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页码：681 / 684
页数：4
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