摘要
介绍了准正交滤波器及其小波,以及正则性的3个命题。运用尺度函数正则性命题分析了长度为2N的准正交小波的正则性,得到正则指标值.对于N=3,4,5,正则指标分别是α3=1.546 4,α4=1.446 4和α5=1.571 0.
The regularity of a class of compactly supported,symmetrical and quasi-orthogonal wavelets was studied.Three propositions on scaling function regularity were introduced to estimate the regularity of the wavelets of 2N-length.The regularity indexes of the wavelets are calculated at N=3,4 and 5.They are α3=1.546 4,α4=1.446 4 and α5=1.571 0 respectively.
出处
《中国计量学院学报》
2010年第3期263-267,共5页
Journal of China Jiliang University
关键词
滤波器
尺度函数
小波
正则性
正则指标
filter
scaling function
wavelet
regularity
regularity index
