help me to find transfer function for one sensor

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Amit 2014-11-27

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/164485-help-me-to-find-transfer-function-for-one-sensor

编辑： Geoff Hayes 2014-11-27

%  Input
assignin('base', 'PClean_f',eval(['PClean_',num2str(ii)]));
[SPClean]      = fft(PClean_f);
%  Output
assignin('base', 'Pdisturbed_f',eval(['Pdisturbed_',num2str(ii)]));
[SPdisturbed]      = fft(Pdisturbed_f);

I am not getting the expected results for 1 particular sensor,I have calculated transfer function for 20 different readings and now in this program i am importing the those 20 T.functions and averaging them to get a unique transfer function that in frequency domain would give A=A=TF.*SPdisturbed;

and B=ifft(A);.....here the obtained * B == Pclean signal * but i am not getting so

reading=20
for q = 1:readings
      filename = sprintf('Tfunct%d_%d.mat',sn,q);
      TF = importdata(filename);
      TFtrans=transpose(TF(1:end,1));
      T(q,1:end)=TFtrans;
 end
 % TF=T';
 T_f_trans=mean(T); %Taking mean of T i.e. all TF from 1 TF1 to TF5
 TFinal=transpose(T_f_trans);
 A=TF.*SPdisturbed;
 B=ifft(A);
 J=norm(abs(PClean)-abs(B));