File: dsimul.cat

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scilab 2.6-4
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dscr             Scilab Group             Scilab Function              dscr
NAME
   dsimul -  state space discrete time simulation 
  
CALLING SEQUENCE
 y=dsimul(sl,u)
PARAMETERS
 sl         : syslin list describing a discrete time linear system
            
 u          : real matrix of appropriate dimension
            
 y          : output of sl
            
DESCRIPTION
   Utility function.  If [A,B,C,D]=abcd(sl) and x0=sl('X0'), dsimul returns
  y=C*ltitr(A,B,u,x0)+D*u i.e. the time response of sl to the input u. sl
  is assumed to be in state space form (syslin list).
  
EXAMPLE
 z=poly(0,'z');
 h=(1-2*z)/(z^2-0.2*z+1);
 sl=tf2ss(h);
 u=zeros(1,20);u(1)=1;
 x1=dsimul(sl,u)   //Impulse response
 u=ones(1,20);
 x2=dsimul(sl,u);  //Step response
SEE ALSO
   syslin, flts, ltitr