www.gusucode.com > wavelet 源码程序 matlab案例代码 > wavelet/PerfectReconstructionWithTheMODWTMRAExample.m
%% Perfect Reconstruction with the MODWTMRA % Obtain the MODWTMRA of a simple time-series signal and demonstrate % perfect reconstruction. %% % Create a time-series signal % Copyright 2015 The MathWorks, Inc. t = 1:10; x =sin(2*pi*200*t); %% % Obtain the MODWT and the MODWTMRA and sum the MODWTMRA rows. m = modwt(x); mra = modwtmra(m); xrec = sum(mra); %% % Use the maximum of the absolute values to show that the difference % between the original signal and the reconstruction is extremely small. % The largest absolute value is on the order of $10^{-25}$, which demonstrates % perfect reconstruction. max(abs(x-xrec))