对信号f(x)进行三层小波变换，得到小波系数d1,d2,d3和逼近系数a3，我想求出各个频率段的能量（能量=小波系数的平方和），很不错的应用程序-The signal f (x) for three wavelet transform, wavelet coefficients d1, d2, d3 and approximation coefficients a3, I would like to find the energy of each frequency band (energy =

数字处理课程设计的程序，里面包括有褶积滤波，快变滤波，褶积滤波与递归滤波的比较，设计高通滤波因子，分析补零对振幅谱的影响，线性褶积和循环褶积，最小平方反滤波，零相位转换，最小相位转换，对地震记录进行静校正11个程序-Digital Processing course design program, which includes the convolution filter, quick change filter, compare convolution filtering and recurs