说明：  1、题目：一维小波变换 2、原理：Mallat算法，用Daubechies正交小波基作为卷积核对输入信号作卷积，对结果进行重排可得一维小波变换后的尺度系数和小波系数。可参见《实用小波分析入门》（刘涛、曾祥利、曾军主编，国防工业出版社，2006年４月第一看看版）第105~106页。
(1, Title: a two-dimensional wavelet transform, the principle: Mallat algorithm, using Daubechies orthogonal wavelet as the convolution of the input signal as a convolution checked, the results rearrangement can be obtained after a one-dimensional scale wavelet transform coefficients and wavelet coefficients. See also " Practical Wavelet Analysis Primer" (Tao, ZENG Xiang-li, Zeng Jun editor, National Defense Industry Press, April 2006 first look Edition) 105 ~ 106.)