holdcir.m

来自「realize analysis and design for computer」· M 代码 · 共 62 行

newplot;clf;
set(gcf,'PaperUnits','centimeters','PaperPosition',[2 2 13 10])
set(gcf,'Units','centimeters','position',get(gcf,'PaperPosition'))

blockhold; 

h=1;
[t,x,y]=sim('blockhold',[0 10]);
subplot(3,2,1);
plot(t,y(:,4),'k--',t,y(:,1),'m-');
axis([0 10 -1.8 1.8]);
set(gca,'Fontsize',9,'Fontname','NewCenturySchlbk');
set(gca,'ytick',[-1 0 1]);
set(gca,'xtick',[0 5 10]);
ylabel('Zero order hold','Fontname','NewCenturySchlbk','Fontsize',9)
title('h=1','Fontname','NewCenturySchlbk','Fontsize',9)

subplot(3,2,3);
plot(t,y(:,4),'k--',t,y(:,2),'m-');
axis([0 10 -1.8 1.8]);
set(gca,'Fontsize',9,'Fontname','NewCenturySchlbk');
set(gca,'ytick',[-1 0 1]);
set(gca,'xtick',[0 5 10]);
ylabel('First order hold','Fontname','NewCenturySchlbk','Fontsize',9)

subplot(3,2,5);
plot(t,y(:,4),'k--',t,y(:,3),'m-');
axis([0 10 -1.8 1.8]);
set(gca,'Fontsize',9,'Fontname','NewCenturySchlbk');
set(gca,'ytick',[-1 0 1]);
set(gca,'xtick',[0 5 10]);
ylabel('Predictive hold','Fontname','NewCenturySchlbk','Fontsize',9)
xlabel('Time','Fontname','NewCenturySchlbk','Fontsize',9)

h=0.5;
[t,x,y]=sim('blockhold',[0 10]);
subplot(3,2,2);
plot(t,y(:,4),'k--',t,y(:,1),'m-');
axis([0 10 -1.8 1.8]);
set(gca,'Fontsize',9,'Fontname','NewCenturySchlbk');
set(gca,'ytick',[-1 0 1]);
set(gca,'xtick',[0 5 10]);
ylabel('Zero order hold','Fontname','NewCenturySchlbk','Fontsize',9)
title('h=0.5','Fontname','NewCenturySchlbk','Fontsize',9)

subplot(3,2,4);
plot(t,y(:,4),'k--',t,y(:,2),'m-');
axis([0 10 -1.8 1.8]);
set(gca,'Fontsize',9,'Fontname','NewCenturySchlbk');
set(gca,'ytick',[-1 0 1]);
set(gca,'xtick',[0 5 10]);
ylabel('First order hold','Fontname','NewCenturySchlbk','Fontsize',9)

subplot(3,2,6);
plot(t,y(:,4),'k--',t,y(:,3),'m-');
axis([0 10 -1.8 1.8]);
set(gca,'Fontsize',9,'Fontname','NewCenturySchlbk');
set(gca,'ytick',[-1 0 1]);
set(gca,'xtick',[0 5 10]);
ylabel('Predictive hold','Fontname','NewCenturySchlbk','Fontsize',9)
xlabel('Time','Fontname','NewCenturySchlbk','Fontsize',9)