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[ÇóÖú] ×ÉѯÏÂ×Ó¿Õ¼ä±æÊ¶µÄMATLAB³ÌÐòÎÊÌâ

[npdat,nyp]=size(yp);
[mpdat,nup]=size(up);
[rpdat,nrp]=size(rf);
if npdat~=mpdat
    error('Y and U have different length.')
end
i=10;
% block Hankel matrix
N=npdat-i+1;
Yp = zeros(N*nyp,i);
Up = zeros(N*nup,i);
sN=sqrt(N);
syp=yp';%/sN;
sup=up';%/sN;
for s=1:i
    for h=1:N
    Yp((h-1)*nyp+1:h*nyp,s)=syp(:,s+h-1);
    Up((h-1)*nup+1:h*nup,s)=sup(:,s+h-1);
    end
end
[nfdat,nyf]=size(yf);
[mfdat,nuf]=size(uf);
[rfdat,nrf]=size(rf);
if nfdat~=mfdat
    error('Y and U have different length.')
end
[ndat,ny]=size(y');
[mdat,nu]=size(u');
% block Hankel matrix
N=nfdat-i+1;
Yf = zeros(N*nyf,i);
Uf = zeros(N*nuf,i);
Rf = zeros(N*nrf,i);
sN=sqrt(N);
syf=yf';%/sN;
suf=uf';%/sN;
srf=rf';%/sN;
for s=1:i
    for h=1:N
    Yf((h-1)*nyf+1:h*nyf,s)=syf(:,s+h-1);
    Uf((h-1)*nuf+1:h*nuf,s)=suf(:,s+h-1);
    Rf((h-1)*nrf+1:h*nrf,s)=srf(:,s+h-1);
    end
end
%QR

%Z= wf/wpr
%Z=wf*wpr'*inv(wpr*wpr')*wpr;
%Z= wf/wp
Z=wf*wp'*inv(wp*wp')*wp;

[U,S,V]=svd(Z);
SS=diag(S);
%figure(2)
% bar(SS);
[mU,nU]=size(U);
U2=U(:,nU-q*N+n+1:nU);
Py=U2(1:q*i,;
Pu=U2(q*i+1:end,;
orderZ=rank(Z);
orderU=rank(U);
%Gam=null(Py);
% gam equal Py orthogonal complement
%[pm,pn]=size(Py);
%[Q,R]=qr(Py);
%gam=Q(:,pn+1:pm);
% gam equal Py orthogonal complement
gam = orthcomp(Py);
C=gam(1:ny,;
A=gam(1:ny*(i-1),\gam(ny+1:i*ny,;





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