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if k<=201<br /> a=0.8854;<br /> elseif k<=301<br /> a=0.6725;<br /> elseif k<=401<br /> a=0.5968;<br /> elseif k<=501<br /> a=0.7762;<br /> else<br /> a=0.8854;<br /> end<br /> case 2<br /> a=0.8854;<br /> if k<=201<br /> tao=6;<br /> elseif k<=301<br /> tao=4; <br /> elseif k<=401<br /> tao=8;<br /> elseif k<=501<br /> tao=6;<br /> else<br /> tao=6;<br /> end<br /> end<br /> <br /> y_temp(1)=(a+0.264)*y_temp(2)-0.264*a*y_temp(3)+0.864*u(k-tao)-0.2731*u(k-tao-1);<br /> y(k)=y_temp(1)+noise(k-9);<br /> <br /> y_temp(3)=y_temp(2);<br /> y_temp(2)=y_temp(1);<br /> <br /> %identification<br /> <br /> %fai<br /> for i=1:na<br /> fai(i)=-(y(k-i)-y(k-i-1));<br /> end<br /> for i=1:nb+1<br /> fai(na+i)=u(k-tao+1-i)-u(k-tao+1-i-1);<br /> end<br /> <br /> kai=P*fai/(fai'*P*fai+mu);<br /> P=(mu^(-1))*(eye(na+nb+1)-kai*fai')*P;<br /> po_thita=po_thita+kai*(y(k)-y(k-1)-fai'*po_thita);<br /> thita=[1,po_thita'];<br /> <br /> %diophantine <br /> f=zeros(na+1,1);<br /> f(1)=1;<br /> f_f=zeros(N,na+1);<br /> E=cell(1,N);<br /> E{1}=1;<br /> <br /> g=cell(1,N);<br /> g_g=zeros(N,Nu);<br /> f_t=zeros(N,1);<br /> g_t=zeros(N,1);<br /> w=zeros(N,1);<br /> <br /> for ite1=1:N<br /> f_e=f(1);<br /> for ite2=1:na<br /> f(ite2)=f(ite2+1)-(thita(ite2+1)-thita(ite2))*f_e;<br /> end<br /> f(na+1)=thita(na+1)*f_e;<br /> f_f(ite1,<img src="images/smilies/default/smile.gif" smilieid="1" border="0" alt="" />=f';<br /> if ite1<N<br /> E{ite1+1}=[E{ite1},f(1)];<br /> end<br /> end<br /> <br /> %compute g<br /> for ite1=1:N<br /> g{ite1}=zeros(1,nb+ite1);<br /> for ite2=1:nb+ite1<br /> for ite3=1:ite1<br /> temp=ite2+1-ite3;<br /> if (temp<=nb+1)&(temp>=1)<br /> g{ite1}(ite2)=g{ite1}(ite2)+thita(na+1+temp)*E{ite1}(ite3);<br /> end<br /> end<br /> end<br /> end<br /> <br /> %compute g_g<br /> for ite1=1:N<br /> if ite1<=Nu<br /> for ite2=1:ite1<br /> g_g(ite1,1+ite1-ite2)=g{ite1}(ite2);<br /> end<br /> else<br /> for ite2=1:Nu<br /> g_g(ite1,Nu+1-ite2)=g{ite1}(ite1-Nu+ite2);<br /> end<br /> end<br /> end<br /> <br /> %compute f_n*y(k)<br /> for ite1=1:N<br /> for ite2=1:na+1<br /> f_t(ite1)=f_t(ite1)+f_f(ite1,ite2)*y(k+1-ite2);<br /> end<br /> end<br /> <br /> %compute g_n*u(k)<br /> for ite1=1:N<br /> for ite2=1:nb<br /> g_t(ite1)=g_t(ite1)+g{ite1}(ite2+ite1)*(u(k-tao-ite2)-u(k-tao-ite2-1));<br /> end<br /> end <br /> % set trace <br /> for ite1=1:N<br /> w(ite1)=alpha^(ite1)*y(k)+(1-alpha^(ite1))*c;<br /> end<br /> <br /> %compute u <br /> r_ft=g_t+f_t;<br /> be_u=inv(g_g'*g_g+eye(Nu))*g_g';<br /> u(k-tao+1)=u(k-tao)+be_u(1,<img src="images/smilies/default/smile.gif" smilieid="1" border="0" alt="" />*(w-r_ft); <br />end<br />%plot y u<br />plot(y);<br />figure;<br />plot(u);</div>
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