?? exa120504.m
字號:
%-----------------------------------------------------------------
% exa120504.m; 例12.5.4, 說明一維小波包的剪切、分割和組合
%-----------------------------------------------------------------
clear;
load noisdopp;
x=noisdopp;
% 用db1小波包分解信號x到第3層
% 采用shannon熵的標準
wpTree=wpdec(x,3,'db1','shannon');
plot(wpTree);
%小波包的剪切,j=2
wTreeCut=wpcutree(wpTree,2);
plot(wTreeCut);
%重新分解小波包節點(3,0)
wTreeSplit=wpsplt(wpTree,[3,0]);
plot(wTreeSplit);
%重新組合小波包
wTreeJoin=wpjoin(wpTree,[2,3]);
plot(wTreeJoin);%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% 一維小波包的分解和重建 %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
?? 快捷鍵說明
復制代碼
Ctrl + C
搜索代碼
Ctrl + F
全屏模式
F11
切換主題
Ctrl + Shift + D
顯示快捷鍵
?
增大字號
Ctrl + =
減小字號
Ctrl + -