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%ÒÑÖª£ºÁ¬ÐøÏµÍ³µÄ´«µÝº¯Êý(num/den)
%Çó½â£ºÀëɢ״̬·½³Ì[Az,Bz,Cz,Dz]
%²ÉÑùʱ¼ä£ºTde

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Gtf=tf(num,den);
Gz=c2d(Gtf,Tde,'zoh');
[numz,denz]=tfdata(Gz,'v');
[Az,Bz,Cz,Dz]=tf2ss(numz,denz);

%·½·¨¶þ
sym tt;
[As,Bs,Cs,Ds]=tf2ss(num,den);
Az=exp(As*Tde);
f=exp(As*tt)*Bs;
Bz=int(f,tt,0,Tde);
Bz=subs(Bz);

%·½·¨Èý
[As,Bs,Cs,Ds]=tf2ss(num,den);
[Az Bz Cz Dz]=c2dm(As,Bs,Cs,Ds,Tde,'zoh');

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