计算小波包树x = rand(1,1000);T = wpdec(x,2，'db2');disp(t)小波包对象结构=================================初始数据大小:[1 1000]顺序:2深度:2终端节点:[3 4 5 6]--------------------------------------------------小波名称:db2低分解滤波器:[-0.1294 0.2241 0.8365 0.483 0.483]高分解滤波器:[-0.483 0.8365 -0.2241 -0.1294]低重构滤波器:[0.483 0.8365 0.2241 -0.1294]高重构滤波器:(-0.1294 - -0.2241 0.8365 - -0.483 ] -------------------------------------------------- 熵名称:香农熵参数:0  --------------------------------------------------