偶对称双尺度因数的Daubechies双正交小波简捷构造法

A short-cut method of constructing Daubechies biorthonormal wavelet with even symmetry double scale parameter

为简化Daubechies双正交小波因数的求解,以紧支集Daubechies正交小波中尺度关系的Fourier变换余弦形式为基础,提出1种当双尺度因数为偶对称时,推导Daubechies双正交小波对偶尺度方程因数的方法,并给出构造数值实例.此方法直观、简明.

In order to simplify a process of getting parameters of Daubechies biorthonormal wavelet, according to the Fourier cosine transform of scale equation of Daubechies biorthonormal wavelet, an algorithm is proposed when the Daubechies biorthonormal wavelet has even symmetry double scale parameters. Some examples are given. The algorithm is simple and clear.