plotatomicphase.sci

小波分解源代码

function PlotAtomicPhase(TFType,atomlist,n,titlestr)
// PlotAtomicPhase -- Plot time-frequency content of atom list
//  Usage
//    PlotAtomicPhase(atomlist,n[,titlestr]) 
//  Inputs
//    TFType       string indicating type of TF atoms: 'CP' or 'WP'   
//    atomlist     atom list, e.g. as produced by CPPursuit or WPPursuit
//    n            signal length
//    titlestr     signal name (optional)
//
//  Side Effects
//    A plot of Time-Frequency Plane, with rectangles showing Heisenberg
//    cells of the atoms making a significant contribution.
//
//  Copyright Aldo I Maalouf
	
	[lhs,rhs]=argn();
	if rhs < 4,
	   titlestr = ' ';
	end
	[natom,ncharm] = size(atomlist);
	ss = norm(atomlist(:,1));
//
	LockAxes([0 1 0 1]);   //
	titlestr = ['Phase plane: ' titlestr ];
	xtitle(titlestr);
	xtitle('','Time','Frequency'); //xlabel('Time');
	                               //ylabel('Frequency');
//
	for k=1:natom,
		  e = n*(atomlist(k,1)./ss)^2;
		  d = atomlist(k,2); b = atomlist(k,3); f = atomlist(k,4);
		  ylo = b/2^d;     yhi = (b+1)/2^d;
		  xlo = f*(2^d)/n; xhi = (f+1)*(2^d)/n;
		  if (TFType=='WP'), 
		      DrawHeisenberg(xlo, xhi, ylo,yhi, e)
		  else
		      DrawHeisenberg(ylo, yhi, xlo,xhi, e)
		  end		  
	end
//
       xset("auto clear","on")//UnlockAxes;
       endfunction