closed.m

realize analysis and design for computer-controlled system

newplot;clf;
set(gcf,'PaperUnits','centimeters','PaperPosition',[2 2 13 9.5])
set(gcf,'Units','centimeters','position',get(gcf,'PaperPosition'))


q1=1;
N=100;
q2=logspace(-4,4,N)';

s=(q1*ones(N,1)+sqrt(q1*q1*ones(N,1)+4*q1*q2))/2;
clo=ones(N,1)./(ones(N,1)+s./q2);

semilogx(q2,clo,'k-')
set(gca,'Fontsize',9,'Fontname','NewCenturySchlbk');
set(gca,'ytick',[0 0.5 1]);
set(gca,'xtick',[1e-4 1e0 1e4]);
xlabel('Time','Fontname','NewCenturySchlbk','Fontsize',9)
ylabel('l(k)','Fontname','NewCenturySchlbk','Fontsize',9,'Fontangle','ital')