fig311.m

realize analysis and design for computer-controlled system

% Generates Fig 3.11
% Computer Controlled Systems (3rd ed)
% Author: B. Wittenmark
% Last edit: 1997-07-27
% Copyright (c) 1996 by K. J. 舠tr鰉, B. Wittenmark and
% Department of Automatic Control, Lund Institute of
% Technology, Lund, Sweden

block311;

newplot;clf;
set(gcf,'PaperUnits','centimeters','PaperPosition',[2 2 13 10])
set(gcf,'Units','centimeters','position',get(gcf,'PaperPosition'))
Ms=7;
%
subplot(3,2,1);
opt=simset('Outputpoints','specified','Initialstate',[0.5 1]);
[t,x,y]=sim('block311',[0:1:10],opt);
hpl=plot(t,y,'m.');
%title('Fig 3.8   Output x0=[0.5; 1]');
axis([0 ,10,-0.2, 2.5]);
set(gca,'Fontsize',9,'Fontname','NewCenturySchlbk');
set(gca,'xtick',[0 10],'ytick',[0 1 2]);
set(hpl,'MarkerSize',Ms)
ylabel('Output','Fontname','NewCenturySchlbk','Fontsize',9)
hold on
plot([0 10],[0 0],'k:')
text(-2.5,2.3,'(a)','fontname','newCe','fontsize',9)
drawnow;
%
subplot(3,2,2);
opt=simset('Outputpoints','specified','Initialstate',[1.5 0.5]);
[t,x,y]=sim('block311',[0:1:10],opt);
hpl=plot(t,y,'m.');
%title(['Output x0=[1.5; 0.5]']);
axis([0,10,-0.2, 2.5]);
set(gca,'Fontsize',9,'Fontname','NewCenturySchlbk');
set(gca,'xtick',[0 10],'ytick',[0 1 2]);
set(hpl,'MarkerSize',Ms)
ylabel('Output','Fontname','NewCenturySchlbk','Fontsize',9)
hold on
plot([0 10],[0 0],'k:')
text(-2.5,2.3,'(b)','fontname','newCe','fontsize',9)
drawnow;
%
subplot(3,2,3);
opt=simset('Outputpoints','specified','Initialstate',[2.5 0]);
[t,x,y]=sim('block311',[0:1:10],opt);
hpl=plot(t,y,'m.');
%title(['Output x0=[2.5; 0]']);
axis([0,10,-0.2, 2.5]);
set(gca,'Fontsize',9,'Fontname','NewCenturySchlbk');
set(gca,'xtick',[0 10],'ytick',[0 1 2]);
set(hpl,'MarkerSize',Ms)
ylabel('Output','Fontname','NewCenturySchlbk','Fontsize',9)
xlabel('Time','Fontname','NewCenturySchlbk','Fontsize',9)
hold on
plot([0 10],[0 0],'k:')
text(-2.5,2.3,'(c)','fontname','newCe','fontsize',9)
drawnow;
%
subplot(3,2,4);
opt=simset('Outputpoints','specified','Initialstate',[1 -0.5]);
[t,x,y]=sim('block311',[0:1:10],opt);
hpl=plot(t,y,'m.');
%title(['Output x0=[1; -0.5]']);
axis([0,10,-0.2, 2.5]);
set(gca,'Fontsize',9,'Fontname','NewCenturySchlbk');
set(gca,'xtick',[0 10],'ytick',[0 1 2]);
set(hpl,'MarkerSize',Ms)
ylabel('Output','Fontname','NewCenturySchlbk','Fontsize',9)
xlabel('Time','Fontname','NewCenturySchlbk','Fontsize',9)
hold on
plot([0 10],[0 0],'k:')
text(-2.5,2.3,'(d)','fontname','newCe','fontsize',9)
drawnow;
%
%