%CEMDC2  bivariate Empirical Mode Decomposition, second algorithm%%%   Syntax%%% [IMF,NB_ITERATIONS]=CEMDC2(T,X,STOP_PARAMETERS,MAX_IMFS,NDIRS);%%%   Description%%% computes bivariate EMD, second algorithm [1] with stopping criterion for% sifting similar to the one proposed in [2]:%%   mean of boolean array {(mean_amplitude)/(envelope_amplitude) > THRESHOLD} < TOLERANCE%% inputs:	%       - T: sampling times. If T=[], the signal is assumed uniformly sampled.%       - X: analyzed signal%       - STOP_PARAMETERS: parameters for the stopping criterion: %         if scalar the value is used to specify THRESHOLD only.%         otherwise the vector should be: [THRESHOLD,TOLERANCE].%         if STOP_PARAMETERS is unspecified or empty, default values are used: [0.05,0.05]%       - MAX_IMFS: maximum number of IMFs to be extracted. If MAX_IMFS is%         zero, empty or unspecified, the default behavior is to extract as%         many IMFs as possible.%       - NDIRS: number of directions used to compute the local mean.%         If unspecified, the default value is 4.%         rem: the actual number of directions (according to [1]) is 2*NDIRS%         % outputs: %		- IMF: intrinsic mode functions (IMFs) (last line = residual)%		- NB_ITERATIONS: effective number of sifting iterations for each mode%%%   Examples%%% workspace: %  T: 1xN time instants%  X: 1xN signal data %%>>IMF = CEMDC2(T,X);%>>[IMF,NB_IT] = CEMDC2([],X);%>>IMF = CEMDC2(T,X,0.1);%>>IMF = CEMDC2(T,X,[0.1,0.1]);%>>[IMF,NB_IT] = CEMDC2([],X,[],4);%%%   References%%% [1] G. Rilling, P. Flandrin, P. Gon鏰lves and J. M. Lilly.,% "Bivariate Empirical Mode Decomposition",% Signal Processing Letters (submitted)%% [2] G. Rilling, P. Flandrin and P. Gon鏰lves% "On Empirical Mode Decomposition and its algorithms",% IEEE-EURASIP Workshop on Nonlinear Signal and Image Processing% NSIP-03, Grado (I), June 2003%%% See also%(c)emd_visu (visualization),%emd (slow but has many options),%cemdc2_fix, cemdc, cemdc_fix (other fast implementations of bivariate EMD)%%% G. Rilling, last modification: 3.2007% gabriel.rilling@ens-lyon.fr%% code based on a student project by T. Boustane and G. Quellec, 11.03.2004% supervised by P. Chainais (ISIMA - LIMOS - Universite Blaise Pascal - Clermont II% email : pchainai@isima.fr).