emd_triang.asv

EMD方法的matlab实现

% EMD_TRIANG.M
%
% P. Flandrin, Mar. 13, 2003 - modified Mar. 2, 2006
%
% computes and displays EMD for the sum of 2 triangular 
% waveforms + 1 tone 
%
% produces Figure 2 in
%
% G. Rilling, P. Flandrin and P. Gon峚lv弒
% "On Empirical Mode Decomposition and its algorithms"
% IEEE-EURASIP Workshop on Nonlinear Signal and Image Processing
% NSIP-03, Grado (I), June 2003

N = 1024;% # of data samples
t = 1:N;

% triangular waveform 1
x=
[imf,ort,nbits] = emd(x);

emd_visu(x,t,imf,1);

figure(1)