传递函数响应曲线的仿真
传递函数为G(s)=w²/(s²+2uws+w²);
输入信号可以随意选取
关键是 仿真过程

谢谢！！！！！！！！！！！！！！！！！！！

set( gcf,'position',[100 100 300 400],'menubar','none',...
'numbertitle','off','name','传递函数仿真','doublebuffer','on');
axes('position',[0.15 0.4 0.7 0.5])
uicontrol('sty','text','pos',[20 80 80 25],'str','w=','hor','right','fontsize',10);
uicontrol('sty','edit','pos',[105 80 60 25],'str','','fontsize',10,'tag','edit1');
uicontrol('sty','text','pos',[20 50 80 25],'str','u=','hor','right','fontsize',10);
uicontrol('sty','edit','pos',[105 50 60 25],'str','','fontsize',10,'tag','edit2');
uicontrol('sty','text','pos',[20 20 80 25],'str','仿真时间[s]','hor','right','fontsize',10);
uicontrol('sty','edit','pos',[105 20 60 25],'str','','fontsize',10,'tag','edit3');
uicontrol('pos',[200 40 60 60],'str','仿真','callback',['try;wh=findobj(''tag'',''edit1'');',...
'uh=findobj(''tag'',''edit2'');w=str2num(get(wh,''string''));u=str2num(get(uh,''string''));',...
'th=findobj(''tag'',''edit3'');tmax=str2num(get(th,''string''));t=0:0.1:tmax;',...
'y=step([w^2],[1 2*w*u w^2],t);plot(t,y),catch,errordlg(''输入无效'',''错误''),end']);

顺手做个小界面玩玩,w取1,u取0.3,仿真时间20秒时候的曲线似乎还不错