fig111.m

realize analysis and design for computer-controlled system

% Generates Fig 1.11 
% Computer Controlled Systems (3rd ed)
% Author: B. Wittenmark
% Last edit: 1997-06-21
% Copyright (c) 1996 by K. J. 舠tr鰉, B. Wittenmark and
% Department of Automatic Control, Lund Institute of
% Technology, Lund, Sweden


block110;

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

opt=simset('Refine',5);
lw=0.9;
Ms=9;
uc=0;
w=1;
a=w/2;
b=2*w;
K=2*w*w;
h=0.5;
%
[t,x,y]=sim('block110',[0, 10],opt);
clf;
%
subplot(3,1,1);
plot(t,y(:,5),'k-','Linew',lw);
hold on;
axis([0,10,-0.3,0.3]);
set(gca,'Fontsize',9,'Fontname','NewCenturySchlbk');
set(gca,'xtick',[0 5 10]);
set(gca,'ytick',[-0.2 0 0.2]);
ylabel('Measured output','Fontsize',9,'Fontname','NewCenturySchlbk');
hold on;
drawnow;
%
subplot(3,1,2);
[ts,ys]=stairs(t,y(:,6));
plot(ts,ys,'k-','Linew',lw);
axis([0,10,-0.3,0.3]);
set(gca,'Fontsize',9,'Fontname','NewCenturySchlbk');
set(gca,'xtick',[0 5 10]);
set(gca,'ytick',[-0.2 0 0.2]);
ylabel('Input','Fontsize',9,'Fontname','NewCenturySchlbk');
xlabel('Time','Fontsize',9,'Fontname','NewCenturySchlbk');
drawnow;
%
subplot(3,1,1);
opt=simset(opt,'Outputpoints','specified');
[t,x,y]=sim('block110',[0:h:10],opt);
hpl=plot(t,y(:,5),'m.');
set(hpl,'Markersize',Ms)