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71 lines
1.7 KiB
71 lines
1.7 KiB
clear all
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close all
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% fastP %%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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cut1=3770;cut2=11250;
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xMAX=8135;
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xf=(cut1-xMAX:1:cut2-xMAX);
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xcmfp=0;
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xcmfm=0;
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ymeanP=xf*0;
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ymeanM=xf*0;
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%%%%%%%%% legge i file con eterodina positiva fast %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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limBKGD=7800;
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filecommon='sio2_maggio10_1736';
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figure(50)
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fi=dir([filecommon '*']);
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index1=[];
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index2=[];
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for kk=[1:7];
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index1=[index1,kk];
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kk
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file=[filecommon '_' num2str(kk)];
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str=['load ' file '.dat'];eval(str);
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str=['x=' file '(:,1);'];eval(str);
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str=['y=' file '(:,2);'];eval(str);
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str=['N=' file '(:,3);'];eval(str);
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nn=find(x>cut1 & x<cut2);x=x(nn);y=y(nn);
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nn=find(x<limBKGD);y=y-mean(y(nn)); %y=y/max(y);
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[A,B]=butter(20,0.2,'low');
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yf=filter(A,B,y);
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nn=find(yf>0.85*max(yf));xcm=sum(x(nn).*yf(nn))/sum(yf(nn));x=x-xcm;
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y=interp1(x,yf,xf,'linear',NaN);
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figure(333);
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plot(xf,y);ylim([-0.02 0.02])
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ymeanP=ymeanP+y;
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xcmfp=xcmfp+xcm;
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str=['clear ' file ];eval(str);
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figure(50);
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hold on;plot(xf,y,'g');
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end
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hold on
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plot(xf,(ymeanM+ymeanP)/(length(index1)+length(index2)),'r');
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hold off
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YY=(ymeanM+ymeanP)/(length(index1)+length(index2));
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jj=find(isnan(YY)==0); xfnew=xf(jj); Ynew=YY(jj);
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jj=find(isnan(YY)==0);
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figure(101)
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xx=xf(jj)*0.52733333; yy=YY(jj)/max(YY(jj));
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plot(xx,yy)
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nn1=find(xx<-500); nn2=find(xx>500); nn=[nn1 nn2]; P=polyfit(xx(nn),yy(nn),1);
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Ybkg=polyval(P,xx);
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figure(11)
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subplot(2,1,1); semilogy(xx,yy-Ybkg,xx,yy)
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subplot(2,1,2); plot(xx,yy,xx,Ybkg)
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if 0,
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AA=[xx' (yy-Ybkg)']; str=['save ' filecommon '.dat AA -ascii;'];eval(str);
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end;
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