参考文献“基于一种新的阈值函数的小波域信号-张维强”编写的小波变换去除白噪声的程序，有不对，不足之处，还请指出批评。-References " wavelet domain signals a new threshold function- Zhang Weiqiang," prepared by the wavelet transform to remove the white noise of the program, there is something wrong, d

基于DB4 的小波变换，实现了小波的分解与重构，可根据实际需要修改阈值的选取方法-Based DB4 wavelet transform to achieve wavelet decomposition and reconstruction, according to the actual need to modify the threshold selection method

简单的小波变换，涉及到了层数的分解，小波对应的提升方案，相应的阈值算法(Simple wavelet transform)