fs = Sampling frequency M = block size (and operator size) function opCSF = operatorCSF(fs,M);
0001 % fs = Sampling frequency 0002 % M = block size (and operator size) 0003 % 0004 % function opCSF = operatorCSF(fs,M); 0005 % 0006 0007 function opCSF = operatorCSF(fs,M); 0008 0009 [fx,fy]=freqspace(M,'meshgrid'); 0010 0011 Fx=fx*fs/2; 0012 0013 Fy=fy*fs/2; 0014 0015 F=sqrt(Fx.^2+Fy.^2); 0016 0017 f=zigzag(F); 0018 0019 [IAF,CSF]=iafet(f,1,0,0,[0 0 0],0); 0020 0021 CSF = dezigzag(CSF); 0022 0023 operador = 1./CSF; 0024 0025 opCSF = ifftshift(operador); 0026 0027 opCSF(1,1)=0; 0028 0029 opCSF = opCSF/max(max(opCSF)); 0030