Mercurial > hg > ltpda
diff m-toolbox/test/utils/test_autocfit.m @ 0:f0afece42f48
Import.
| author | Daniele Nicolodi <nicolodi@science.unitn.it> |
|---|---|
| date | Wed, 23 Nov 2011 19:22:13 +0100 |
| parents | |
| children |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/m-toolbox/test/utils/test_autocfit.m Wed Nov 23 19:22:13 2011 +0100 @@ -0,0 +1,273 @@ +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +% Test script for autocfit +% +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +% HISTORY: 12-09-2008 L Ferraioli +% Creation +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +%% VERSION + +'$Id: test_autocfit.m,v 1.1 2009/04/23 10:11:26 luigi Exp $'; + +%% Cleaning + +clear all + +%% data + + + +% % frequencies +% f = logspace(-6,log10(5),300); % frequency vector in Hz +% f = f.'; +% fs = 10; + +% % Continuous rational transfer function +% Num = [-2.726e-007; 1.665e-005; 1.303e-007; 8.381e-010]; % Numerator +% Den = [1; 0.2189; 0.01922; 0.0007803; 0]; % Denominator +% y = freqs(Num,Den,w); + +% % filt1 +% dRes = [0.2+j*0.003;0.2-j*0.003;0.45+j*0.0007;0.45-j*0.0007]; +% dPoles = [0.97+j*0.0003;0.97-j*0.0003;0.75+j*0.00005;0.75-j*0.00005]; +% dDTerms = 0; + +% % filt2 +% dRes = [0.2+j*0.003;0.2-j*0.003;0.45+j*0.0007;0.45-j*0.0007;12;0.45+j*0.07;0.45-j*0.07]; +% dPoles = [0.97+j*0.0003;0.97-j*0.0003;0.75+j*0.00005;0.75-j*0.00005;0.1;0.998+j*0.00005;0.998-j*0.00005]; +% dDTerms = 0; + +% % Model aStefano Tf11 +% dRes = [2.44554138162509e-011 - 1.79482547894083e-011i; +% 2.44554138162509e-011 + 1.79482547894083e-011i; +% 2.66402334803101e-009 + 1.1025122049153e-009i; +% 2.66402334803101e-009 - 1.1025122049153e-009i; +% -7.3560293387644e-009; +% -1.82811618589835e-009 - 1.21803627800855e-009i; +% -1.82811618589835e-009 + 1.21803627800855e-009i; +% 1.16258677367555e-009; +% 1.65216557639319e-016; +% -1.78092396888606e-016; +% -2.80420398962379e-017; +% 9.21305973049041e-013 - 8.24686706827269e-014i; +% 9.21305973049041e-013 + 8.24686706827269e-014i; +% 5.10730060739905e-010 - 3.76571756625722e-011i; +% 5.10730060739905e-010 + 3.76571756625722e-011i; +% 3.45893698149735e-009; +% 3.98139182134446e-014 - 8.25503935419059e-014i; +% 3.98139182134446e-014 + 8.25503935419059e-014i; +% -1.40595719147164e-011]; +% +% dPoles = [0.843464045655194 - 0.0959986292915475i; +% 0.843464045655194 + 0.0959986292915475i; +% 0.953187595424927 - 0.0190043625473383i; +% 0.953187595424927 + 0.0190043625473383i; +% 0.967176277937188; +% 0.995012027005247 - 0.00268322602801729i; +% 0.995012027005247 + 0.00268322602801729i; +% 0.996564761885673; +% 0.999999366165445; +% 0.999981722418555; +% 0.999921882627659; +% 0.999624431675213 - 0.000813407848742761i; +% 0.999624431675213 + 0.000813407848742761i; +% 0.997312006278751 - 0.00265611346834941i; +% 0.997312006278751 + 0.00265611346834941i; +% 0.990516544257531; +% 0.477796923118318 - 0.311064085401834i; +% 0.477796923118318 + 0.311064085401834i; +% 0]; +% +% dDTerms = 0; + +% % Model Stefano TF12 +% dRes = [1.44258422208796e-017 + 7.07359428613009e-019i; +% 1.44258422208796e-017 - 7.07359428613009e-019i; +% -3.4918408053655e-021 - 1.05662874569329e-021i; +% -3.4918408053655e-021 + 1.05662874569329e-021i; +% -7.61773292876976e-021; +% 4.84357724603939e-020 + 2.38824204294595e-019i; +% 4.84357724603939e-020 - 2.38824204294595e-019i; +% -4.07088520945753e-020 - 2.31474543846105e-019i; +% -4.07088520945753e-020 + 2.31474543846105e-019i; +% 8.73316588658882e-023; +% -5.21840635377469e-020; +% 1.8461911504859e-023; +% 5.20105247464461e-020; +% -4.68960092394415e-022; +% -1.44261407664171e-017 + 6.8922564526833e-019i; +% -1.44261407664171e-017 - 6.8922564526833e-019i; +% 3.13688133935426e-022]; +% +% dPoles = [0.477546340377332 - 0.310830571032376i; +% 0.477546340377332 + 0.310830571032376i; +% 0.99790715414307 - 0.0028490561287024i; +% 0.99790715414307 + 0.0028490561287024i; +% 0.998014205354671 ; +% 0.999585354543332 - 0.000780408757425194i; +% 0.999585354543332 + 0.000780408757425194i; +% 0.99966003029931 - 0.000830944038363768i; +% 0.99966003029931 + 0.000830944038363768i; +% 0.999962770401331 ; +% 0.999981881865521 ; +% 0.999999365763457 ; +% 0.999981706320212 ; +% 0.99992421574188 ; +% 0.477898460791003 + 0.311001926610074i; +% 0.477898460791003 - 0.311001926610074i; +% 0]; +% dDTerms = 0; + +% % Model Stefano Tf21 +% dRes = [-1.80035241582968e-016 + 1.99543917791863e-015i; +% -1.80035241582968e-016 - 1.99543917791863e-015i; +% -1.85590889333759e-013 - 1.23844418827409e-014i; +% -1.85590889333759e-013 + 1.23844418827409e-014i; +% 5.03656596876842e-013 ; +% -2.62470963499904e-013 + 2.30024232938878e-012i; +% -2.62470963499904e-013 - 2.30024232938878e-012i; +% -9.83780507870955e-018 ; +% 3.40426735130194e-021 ; +% 9.78322351492755e-018 ; +% -1.65010934542937e-020 ; +% 2.60918565203438e-015 + 1.0546609464659e-015i; +% 2.60918565203438e-015 - 1.0546609464659e-015i; +% 3.18105585405455e-014 + 2.48839990780042e-013i; +% 3.18105585405455e-014 - 2.48839990780042e-013i; +% 3.23021641947666e-013 ; +% 4.81265000078114e-016 - 3.18269170053848e-017i; +% 4.81265000078114e-016 + 3.18269170053848e-017i; +% 5.16260024128201e-018]; +% +% dPoles = [0.872004077421604 - 0.110344282822693i; +% 0.872004077421604 + 0.110344282822693i; +% 0.956884129232757 - 0.0225532091775074i; +% 0.956884129232757 + 0.0225532091775074i; +% 0.966514825697177 ; +% 0.995140550419744 - 0.000755127639524413i; +% 0.995140550419744 + 0.000755127639524413i; +% 0.999981802194393 ; +% 0.99999936576546 ; +% 0.999981722418555 ; +% 0.999921882627659 ; +% 0.999624431675213 + 0.000813407848742761i; +% 0.999624431675213 - 0.000813407848742761i; +% 0.997312006278751 + 0.00265611346834941i; +% 0.997312006278751 - 0.00265611346834941i; +% 0.990516544257531 ; +% 0.477796923118318 + 0.311064085401834i; +% 0.477796923118318 - 0.311064085401834i; +% 0]; +% +% dDTerms = 0; + +% % Model Stefano Tf22 +% dRes = [1.1284521501259e-014; +% -3.72133611555879e-014 - 2.08232683444075e-014i; +% -3.72133611555879e-014 + 2.08232683444075e-014i; +% 9.84930639106637e-014 - 1.46640810672565e-013i; +% 9.84930639106637e-014 + 1.46640810672565e-013i; +% 2.51323684013671e-014 ; +% -5.64078525288305e-014 ; +% -1.62476406586366e-014 ; +% -1.08424815979566e-011 + 8.32328079357669e-012i; +% -1.08424815979566e-011 - 8.32328079357669e-012i; +% 2.41831559776112e-011]; +% +% dPoles = [0.988511243978897; +% 0.997305870640646 + 0.00211760900132725i; +% 0.997305870640646 - 0.00211760900132725i; +% 0.999626453270255 + 0.0008125673525946i; +% 0.999626453270255 - 0.0008125673525946i; +% 0.999999366366222 ; +% 0.999981706320212 ; +% 0.99992421574188 ; +% 0.477898460791003 - 0.311001926610074i; +% 0.477898460791003 + 0.311001926610074i; +% 0]; +% +% dDTerms = 0; + +% % filt4 +% dRes = [2.44554138162509e-011; +% 2.66402334803101e-009; +% -7.3560293387644e-009; +% -1.82811618589835e-009; +% 1.16258677367555e-009; +% 1.65216557639319e-016; +% -1.78092396888606e-016; +% -2.80420398962379e-017; +% 9.21305973049041e-013; +% 5.10730060739905e-010; +% 3.45893698149735e-009; +% 3.98139182134446e-014; +% -1.40595719147164e-011]; +% +% dPoles = [0.843464045655194; +% 0.953187595424927; +% 0.967176277937188; +% 0.995012027005247; +% 0.996564761885673; +% 0.999999366165445; +% 0.999981722418555; +% 0.999921882627659; +% 0.999624431675213; +% 0.997312006278751; +% 0.990516544257531; +% 0.477796923118318; +% 0]; +% +% dDTerms = 0; +% +% pfparams.type = 'disc'; +% pfparams.freq = f; +% pfparams.fs = fs; +% pfparams.res = dRes; +% pfparams.pol = dPoles; +% pfparams.dterm = dDTerms; +% +% % response of the model filter +% pfr = pfresp(pfparams); +% y = pfr.resp; + +%% psd + +load ..\m-toolbox\test\mpsd.mat % load mpsd.mat first column is f then psd1, csd and psd2 + +f = mpsd(:,1); +% psd = mpsd(:,2:4); +psd = mpsd(:,2); +y = abs(sqrt(psd)); + +%% auto search for the order + +% Fitting params +clear params +params = struct('spolesopt',2, 'Nmaxiter',40, 'minorder',18,... + 'maxorder',35, 'weightparam',2, 'plot',1,... + 'ctp','chivar','lrscond',5,'rmsevar',2,... + 'stabfit',0,'dterm',0,'spy',0); +% Fitting +disp(' Fitting absolute TF value with unstable model ') +[res,poles,dterm,mresp,rdl,rmse] = utils.math.autocfit(y,f,params); + + + +%% comparison +figure() +subplot(2,1,1); +loglog(f,abs(y),'k') +hold on +loglog(f,abs(mresp),'r') +xlabel('Frequency [Hz]') +ylabel('Amplitude') +legend('Original', 'CTFIT') + +subplot(2,1,2); +semilogx(f,angle(y),'k') +hold on +semilogx(f,angle(mresp),'r') +xlabel('Frequency [Hz]') +ylabel('Amplitude') +legend('Original', 'CTFIT') +