三层小波变换
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-Thesignalf(x)forthreewavelettransform,waveletcoefficientsd1,d2,d3andapproximationcoefficientsa3,Iwouldliketofindtheenergyofeachfrequencyband(energy=sumofsquaredwaveletcoefficients),verygoodapplication