摘要
详细地研究了ｍ阶尺度函数，特别是Ｄ（Ｎ）ｍ，ｎ（ｔ）和信号的采样，零阶保持逼近。导出了信号初始近谱的计算方法。
The sampling method for scale function φ(t) , specially D (N) m,n (t) and signal are studied in detail.With the help of zero order holding approximations of the scale function and signal,the preliminary approximation spectrum of the signal are derived.Then,the implementation of one dimensional Mallat algorithm is indroduced systematically.
出处
《重庆大学学报（自然科学版）》
EI
CAS
CSCD
1997年第1期7-13,共7页
Journal of Chongqing University
基金
国家自然科学基金
关键词
MALLAT算法
尺度函数
零阶保持逼近
初始逼近谱
one dimensional Mallat algorithm
scale function
signal
sampling
zero order holding approximation
preliminary approximation spectrum
