File:Fonctions pseudo-voigt.png

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Summary

PV = η·L + (1-η)·G

Pseudo-fonctions de Voigt : somme d'un gaussienne et d'une lorentzienne

Pseudo-Voigt functions: sum of a gaussian and of a lorentzian

Auteur/author : Christophe Dang Ngoc Chan (cdang)

Réalisé avec/made with : Scilab

clear;clf;

// Loi normale centrée réduite

deff('y=gauss(x)','y=1/(sqrt(2*%pi))*exp(-x^2/2)')

// Fonction de Lorentz

deff('y=lor(x)','y=1/(2*%pi*(0.25+x^2))')

// Intervalle d'étude

pas=0.01;
X=[-3:pas:3]';

// Pseudo-fonctions de Voigt

G=feval(X,gauss);G1=2/3*G;G2=0.5*G;G3=1/3*G;
L=feval(X,lor);L1=1/3*L;L2=0.5*L;L3=2/3*L;

P1 = L1+G1;
P2 = L2+G2;
P3 = L3+G3;

plot2d(X,[G,P1,P2,P3,L],style=[1,2,3,4,5],leg='eta=0@eta=1/3@eta=1/2@eta=2/3@eta=1')
xtitle('Pseudo-fonctions de Voigt','x','y')

Licensing

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This licensing tag was added to this file as part of the GFDL licensing update.
Category:CC-BY-SA-3.0-migrated#Fonctions%20pseudo-voigt.pngCategory:License migration completed#Fonctions%20pseudo-voigt.pngCategory:GFDL#Fonctions%20pseudo-voigt.png Category:Signal processing Category:Scilab Category:French-language diagrams Category:Voigt distribution Category:Media missing infobox template
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