dsimul

state space discrete time simulation

Calling Sequence

y=dsimul(sl,u)

Arguments

: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).

Examples

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 linear system definition
• flts time response (discrete time, sampled system)
• ltitr discrete time response (state space)