www.gusucode.com > wavelet 源码程序 matlab案例代码 > wavelet/BestWaveletPacketTreeExample.m
%% Best Wavelet Packet Tree % This example shows to obtain the optimal wavelet packet tree based on an % entropy criterion. %% % Load the noisy Doppler signal. Obtain the wavelet packet tree down to % level 4 with the |'sym4'| wavelet. Use the periodic extension mode. % Copyright 2015 The MathWorks, Inc. dwtmode('per'); load noisdopp; T = wpdec(noisdopp,4,'sym4'); %% % Obtain the best wavelet packet tree and plot the result. BstTree = besttree(T); plot(BstTree) %% % Return the DWT extension mode to the default value. dwtmode('sym');