?? filtre_lms.asv
字號(hào):
%%%%%%%%%%%%%%%%% [ UNIVERSITE DU QUEBEC A TROIS-RIVIERES ] %%%%%%%%%%
%%%%%%%%%%%%%DEPARTEMENT DE GENIE ELECTRIQUE ET DE GENIE INFORMATIQUE%%%%
%%%%%%%%%%%%%TRAITEMENT AVENCE DU SIGNAL ELECTRIQUE[AHMAD YEHYA FAWAZ]%%%
%%%%FILTRE LMS:
M=5; %%%%%%%%%%DIMENTION DU FILTRE%%%%%%%%%%
Y=0.2; %%%%%%%%%%PAS D'ADAPTATION%%%%%%%%%%%%%
W_LMS=zeros(1,M); %%%%%%%%%%POIDS DU FILTRE%%%%%%%%%%%%%%
delai=0; %%%%%%%%%%(M+1)/2:%%%%%%%%%%%%%%%%%%%%%
for n=1:N
%%%%%%%%%%%%%%%%%%%%%%%%%%%SORTIE DU FILTRE LMS%%%%%%%%%%%%%%
V_estime(1,n)=0;
for m=1:M
if (n-m+1>0)
V_estime(1,n)= V_estime(1,n)+W_LMS(1,m)*r(n-m+1,1);
end
end
%%%%%%%%%%%%%%%%%%%%%%%%%%%ERREURE ESTIMI%%%%%%%%%%%%%%%%%%%%
if(n>delai)
ErreureEstime(1,n)=s(1,n-delai)-V_estime(1,n);
else
ErreureEstime(1,n)=0;
end
%%%%%%%%%%%%%%%%%%%%%%%%%%%ADAPTATION DE POIDS%%%%%%%%%%%%%%%
for m=1:M
if(n-m+1>0)
W_LMS(1,m)=W_LMS(1,m)+Y*ErreureEstime(1,n)*r(n-m+1,1);
end
end
end
%%%%%%%%%%%%%%%%%%%%%%%%%% [DANIEL] %%%%%%%%%%%%%%%%%%%%%%%%%
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