Hybrid Wavelet Packet analysis

被引：2
|
作者：
Hedges, RA [1 ]
机构：
[1] Arizona State Univ, Coll Engn & Appl Sci, Ctr Telecommun Res, Tempe, AZ 85287 USA
来源：
PROCEEDINGS OF THE IEEE-SP INTERNATIONAL SYMPOSIUM ON TIME-FREQUENCY AND TIME-SCALE ANALYSIS | 1998年
关键词：
D O I：
10.1109/TFSA.1998.721401
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Performance of any transform in a particular application is highly dependent on the basis functions chosen. The choice of quadrature mirror filters (QMF) used in a wavelet packet analysis should be taken into consideration in a compression scheme. The choice of appropriate QMF is not only signal dependent, but scale dependent within a given signal. A generalization, known as Hybrid Wavelet Packet analysis, which includes the choice of optimal QMF at each level of decomposition is explored. Computational results show that optimized hybrid wavelet packet bases provide better compression for a class of signals and indicate methods to develop search strategies to find these optimal bases.
引用
收藏
页码：221 / 224
页数：4
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