25 lines
1 KiB
Matlab
Executable file
25 lines
1 KiB
Matlab
Executable file
function [F_1_chapeau,F_2_chapeau,a_chapeau] = MV(xy_donnees_bruitees,x_F_aleatoire,y_F_aleatoire,a_aleatoire)
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n = size(xy_donnees_bruitees,2);
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nb_tirages = length(a_aleatoire);
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sommes_ecarts_carres = [];
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for k = 1:nb_tirages
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x_F_1_test = x_F_aleatoire(1,k);
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y_F_1_test = y_F_aleatoire(1,k);
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P_i_F_1_test = [x_F_1_test;y_F_1_test]*ones(1,n)-xy_donnees_bruitees;
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distances_P_i_F_1_test = sqrt(sum(P_i_F_1_test.*P_i_F_1_test));
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x_F_2_test = x_F_aleatoire(2,k);
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y_F_2_test = y_F_aleatoire(2,k);
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P_i_F_2_test = [x_F_2_test;y_F_2_test]*ones(1,n)-xy_donnees_bruitees;
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distances_P_i_F_2_test = sqrt(sum(P_i_F_2_test.*P_i_F_2_test));
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a_test = a_aleatoire(k);
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ecarts_test = distances_P_i_F_1_test+distances_P_i_F_2_test-2*a_test;
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sommes_ecarts_carres = [sommes_ecarts_carres sum(ecarts_test.*ecarts_test)];
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end
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[E_min,indice_min] = min(sommes_ecarts_carres);
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F_1_chapeau = [x_F_aleatoire(1,indice_min) ; y_F_aleatoire(1,indice_min)];
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F_2_chapeau = [x_F_aleatoire(2,indice_min) ; y_F_aleatoire(2,indice_min)];
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a_chapeau = a_aleatoire(1,indice_min);
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